Whittet-Higgins Company KMM-31 Retaining Nut

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KMM-31 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
N-052 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
AN-20 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

Supplier's Site
NH-08 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Supplier's Site
N-056 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
NT-09 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Supplier's Site
KMM-15 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
NH-12 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Supplier's Site
KMM-00 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
NL-36 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
KMM-21 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
NL-13 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
NT-18 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Supplier's Site
N-13 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
N-06 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
AN-34 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

Supplier's Site
KMM-06 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
N-14 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
KMM-29 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
KMM-056 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
N-022 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
NL-14 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
NI-02 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

Supplier's Site
NL-11 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
KMM-05 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
KMM-30 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
NT-16 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Supplier's Site
KMM-13 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
N-065 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
N-036 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
NL-30 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
NL-05 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
NL-16 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
NI-14 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

Supplier's Site
KMM-18 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
KMM-25 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
NT-11 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Supplier's Site
NE-24 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

Supplier's Site
NL-04 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
NI-12 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

Supplier's Site
AN-32 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

Supplier's Site
NI-13 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

Supplier's Site
NL-01 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
NI-07 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

Supplier's Site
NE-19 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

Supplier's Site
N-038 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
NH-22 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Supplier's Site
KMM-36 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
KMM-01 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
NL-06 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
NL-08 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
NI-17 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

Supplier's Site
AN-26 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

Supplier's Site
N-044 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
N-02 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
NH-21 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Supplier's Site
AN-38 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

Supplier's Site
NT-10 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Supplier's Site
KMM-064 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
NL-18 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
KMM-24 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
N-03 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
NL-21 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
NL-07 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
N-048 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
KMM-07 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
NL-28 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
KMM-34 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
AN-17 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

Supplier's Site
N-072 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
KMM-32 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
NE-17 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

Supplier's Site
AN-40 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

Supplier's Site
KMM-23 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
NT-04 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Supplier's Site
NI-10 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

Supplier's Site
NT-14 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Supplier's Site
N-028 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
NL-34 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
NH-18 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Supplier's Site
NI-09 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

Supplier's Site
NE-32 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

Supplier's Site
NH-15 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Supplier's Site
N-10 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
NH-20 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Supplier's Site
NL-38 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
KMM-14 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
KMM-22 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
N-030 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
NI-04 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

Supplier's Site
NH-17 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Supplier's Site
KMM-26 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
NI-03 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

Supplier's Site
NL-15 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
AN-28 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

Supplier's Site
NH-30 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Supplier's Site
NL-24 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
NL-10 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
NL-32 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
NE-36 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

Supplier's Site
NE-26 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

Supplier's Site
NL-17 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
KMM-04 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
NT-00 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Supplier's Site
KMM-28 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
NT-15 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Supplier's Site
N-04 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
NT-05 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Supplier's Site
N-44 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
KMM-16 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
NI-05 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

Supplier's Site
NH-36 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Supplier's Site
NL-22 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
KMM-08 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
NT-07 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Supplier's Site
NE-38 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

Supplier's Site
KMM-09 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
NE-18 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

Supplier's Site
KMM-044 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
NH-11 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Supplier's Site
NH-24 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Supplier's Site
AN-30 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

Supplier's Site
N-064 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
N-024 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
N-05 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
AN-36 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

Supplier's Site
AN-19 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

Supplier's Site
AN-16 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

Supplier's Site
NH-38 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Supplier's Site
NH-28 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Supplier's Site
N-00 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
NE-40 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

Supplier's Site
NT-02 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Supplier's Site
NL-03 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
N-01 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
N-060 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
NL-19 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
NH-40 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Supplier's Site
NT-03 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Supplier's Site
NI-16 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

Supplier's Site
KMM-03 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
AN-22 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

Supplier's Site
NE-20 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

Supplier's Site
KMM-10 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
KMM-12 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
NH-10 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Supplier's Site
NH-16 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Supplier's Site
NL-12 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
NI-15 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

Supplier's Site
N-07 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
N-12 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
KMM-19 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
KMM-40 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
NI-18 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

Supplier's Site
NI-01 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

Supplier's Site
N-08 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
NI-11 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

Supplier's Site
KMM-11 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
NL-09 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

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AN-15 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

Supplier's Site
NH-19 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Supplier's Site
AN-18 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

Supplier's Site
NE-34 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

Supplier's Site
NE-15 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

Supplier's Site
NL-02 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
KMM-27 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
NL-00 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
NL-26 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
NI-06 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

Supplier's Site
NT-06 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Supplier's Site
NT-08 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Supplier's Site
N-032 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
KMM-20 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
N-11 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
NL-20 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
NH-09 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Supplier's Site
N-068 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
NH-34 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Supplier's Site
N-040 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
NT-17 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Supplier's Site
NE-28 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

Supplier's Site
NH-14 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Supplier's Site
KMM-33 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
NE-21 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

Supplier's Site
NT-01 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Supplier's Site
NE-16 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

Supplier's Site
NT-12 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Supplier's Site
KMM-02 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
NE-22 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

Supplier's Site
NL-40 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Designed with a left hand thread to assure greater locking power the thread winds in the direction opposite that in which the shaft of most assemblies rotate - a right hand direction. These nuts have become important in applications of high rotational speeds of racing vehicles and equipment drives. Also they serve immeasurably well in applications where a right hand thread and a left hand thread are applied to opposing ends of a shaft to allow for an ease in tightening and loosening power transmission assemblies in a more efficient manner.

Supplier's Site
NH-32 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Supplier's Site
NI-08 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

This series of locknuts with the National Fine Thread Series with 16 threads per inch made to Class 3B tolerances is designed to be used with bearings and other power transmission components with fractional inch bores as well as by manufacturers preferring not to use the SAE-AFBMA series of locknuts which was an inch modification of metric locknuts early in the twentieth century.

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NT-13 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Designed by WHITTET-HIGGINS to provide the necessary holding power in a more limited space, these thin section locknuts are generally 50% to 75% the thickness of the N-AN series of locknuts. To provide greater clearance, they have a smaller outer diameter (O.D.). These smaller dimension locknuts weigh less. These thin section locknuts have become increasingly popular in the aircraft, computer, electronics and machine tool industries using small bearings, classified generally as Extremely Light and Extra Light, where the usual locknut would be as large or larger than the bearing. They are used with the WT series of lockwashers.

Supplier's Site
NH-13 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Supplier's Site
N-026 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
KMM-17 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
AN-21 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

Supplier's Site
AN-24 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

This series meeting SAE-Society of the Automotive Engineers, ABEC-Annular Bearing Engineers Committee and AFBMA- Anti-Friction Bearing Manufacturers Association specifications offers a positive mechanical lock when combined with a lockwasher and keyway. An 'A' before the locknut designation indicates this size was previously manufactured with 11 threads per inch whereas now they have either 12 or 8 threads per inch. It is recommended that everyone avoid making shaft threads to this now semi-obsolete 11 pitch series. All new designs could best use the 12 and 8 pitch AN series of threads for the greatest assurance of long term compatibility and future availability.

Supplier's Site
N-034 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site
NE-30 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

This series was the continuance of the original SAE series developed at the turn of the century. In 1930, after years of use indicated the original thread design was not the most practical and economica, the sizes 15 through 40 of this series were changed from eleven threads per inch to the twelve or eight threads per inch and designated AN rather than N.

Supplier's Site
KMM-38 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

To meet the variances of some nations using metric dimensions and to bring the quality of manufacture to United States standards, this series is manufactured with a thread of 4H tolerance grade and position as promulgated by the International Standards Organization. Still these locknuts are fully interchangeable with metric locknuts made to a 5H tolerance grade and position. Be aware, however, there are special thread metric retaining locknuts just as there have been and their will be special inch locknuts for the special engineer and special application.

Supplier's Site
NH-26 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Tolerances are tighter because this nut is so often used with tapered roller bearings. The most important tolerance - total indicator reading - of runout of the bearing faces to the pitch diameter of the thread is held within .002 for all sizes rather than ranging up to .006 as in the N-AN series. Surface finish of 100 microinches is for both faces in this series, not just the bearing face.

Supplier's Site
N-09 - Retaining Nut - Whittet-Higgins Company
Central Falls, RI, USA
Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Most commonly used locknuts, made of low carbon steel, these locknuts are the least expensive but require a lockwasher and the cutting of a keyway in the shaft.

Supplier's Site

Technical Specifications

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Product Category Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts Precision Locknuts
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Product Name KMM-31 N-052 AN-20 NH-08 N-056 NT-09 KMM-15 NH-12 KMM-00 NL-36 KMM-21 NL-13 NT-18 N-13 N-06 AN-34 KMM-06 N-14 KMM-29 KMM-056 N-022 NL-14 NI-02 NL-11 KMM-05 KMM-30 NT-16 KMM-13 N-065 N-036 NL-30 NL-05 NL-16 NI-14 KMM-18 KMM-25 NT-11 NE-24 NL-04 NI-12 AN-32 NI-13 NL-01 NI-07 NE-19 N-038 NH-22 KMM-36 KMM-01 NL-06 NL-08 NI-17 AN-26 N-044 N-02 NH-21 AN-38 NT-10 KMM-064 NL-18 KMM-24 N-03 NL-21 NL-07 N-048 KMM-07 NL-28 KMM-34 AN-17 N-072 KMM-32 NE-17 AN-40 KMM-23 NT-04 NI-10 NT-14 N-028 NL-34 NH-18 NI-09 NE-32 NH-15 N-10 NH-20 NL-38 KMM-14 KMM-22 N-030 NI-04 NH-17 KMM-26 NI-03 NL-15 AN-28 NH-30 NL-24 NL-10 NL-32 NE-36 NE-26 NL-17 KMM-04 NT-00 KMM-28 NT-15 N-04 NT-05 N-44 KMM-16 NI-05 NH-36 NL-22 KMM-08 NT-07 NE-38 KMM-09 NE-18 KMM-044 NH-11 NH-24 AN-30 N-064 N-024 N-05 AN-36 AN-19 AN-16 NH-38 NH-28 N-00 NE-40 NT-02 NL-03 N-01 N-060 NL-19 NH-40 NT-03 NI-16 KMM-03 AN-22 NE-20 KMM-10 KMM-12 NH-10 NH-16 NL-12 NI-15 N-07 N-12 KMM-19 KMM-40 NI-18 NI-01 N-08 NI-11 KMM-11 NL-09 AN-15 NH-19 AN-18 NE-34 NE-15 NL-02 KMM-27 NL-00 NL-26 NI-06 NT-06 NT-08 N-032 KMM-20 N-11 NL-20 NH-09 N-068 NH-34 N-040 NT-17 NE-28 NH-14 KMM-33 NE-21 NT-01 NE-16 NT-12 KMM-02 NE-22 NL-40 NH-32 NI-08 NT-13 NH-13 N-026 KMM-17 AN-21 AN-24 N-034 NE-30 KMM-38 NH-26 N-09
Design Units Metric English; Metric (optional feature) English; Metric (optional feature) English English; Metric (optional feature) English Metric English Metric English Metric English English English; Metric (optional feature) English; Metric (optional feature) English; Metric (optional feature) Metric English; Metric (optional feature) Metric Metric English; Metric (optional feature) English English English Metric Metric English Metric English; Metric (optional feature) English; Metric (optional feature) English English English English Metric Metric English English; Metric (optional feature) English English English; Metric (optional feature) English English English English; Metric (optional feature) English; Metric (optional feature) English Metric Metric English English English English; Metric (optional feature) English; Metric (optional feature) English; Metric (optional feature) English English; Metric (optional feature) English Metric English Metric English; Metric (optional feature) English English English; Metric (optional feature) Metric English Metric English; Metric (optional feature) English; Metric (optional feature) Metric English; Metric (optional feature) English; Metric (optional feature) Metric English English English English; Metric (optional feature) English English English English; Metric (optional feature) English English; Metric (optional feature) English English Metric Metric English; Metric (optional feature) English English Metric English English English; Metric (optional feature) English English English English English; Metric (optional feature) English; Metric (optional feature) English Metric English Metric English English; Metric (optional feature) English English; Metric (optional feature) Metric English English English Metric English English; Metric (optional feature) Metric English; Metric (optional feature) Metric English English English; Metric (optional feature) English; Metric (optional feature) English; Metric (optional feature) English; Metric (optional feature) English; Metric (optional feature) English; Metric (optional feature) English; Metric (optional feature) English English English; Metric (optional feature) English; Metric (optional feature) English English English; Metric (optional feature) English; Metric (optional feature) English English English English Metric English; Metric (optional feature) English; Metric (optional feature) Metric Metric English English English English English; Metric (optional feature) English; Metric (optional feature) Metric Metric English English English; Metric (optional feature) English Metric English English; Metric (optional feature) English English; Metric (optional feature) English; Metric (optional feature) English; Metric (optional feature) English Metric English English English English English English; Metric (optional feature) Metric English; Metric (optional feature) English English English; Metric (optional feature) English English; Metric (optional feature) English English; Metric (optional feature) English Metric English; Metric (optional feature) English English; Metric (optional feature) English Metric English; Metric (optional feature) English English English English English English; Metric (optional feature) Metric English; Metric (optional feature) English; Metric (optional feature) English; Metric (optional feature) English; Metric (optional feature) Metric English English; Metric (optional feature)
Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut Bearing Locknut
Bearing Bore Size 155mm 260mm 100mm 40mm 280mm 45mm 75mm 60mm 10mm 180mm 105mm 65mm 90mm 65mm 30mm 170mm 30mm 70mm 145mm 28mm 110mm 70mm 15mm 55mm 25mm 150mm 80mm 65mm 32.5mm 180mm 150mm 25mm 80mm 70mm 90mm 125mm 55mm 120mm 20mm 60mm 160mm 65mm 12mm 35mm 95mm 190mm 110mm 180mm 12mm 30mm 40mm 85mm 130mm 220mm 15mm 105mm 190mm 50mm 32mm 90mm 120mm 17mm 105mm 35mm 240mm 35mm 140mm 170mm 85mm 360mm 160mm 85mm 200mm 115mm 20mm 50mm 70mm 140mm 170mm 90mm 45mm 160mm 75mm 50mm 100mm 190mm 70mm 110mm 150mm 20mm 85mm 130mm 17mm 75mm 140mm 150mm 120mm 50mm 160mm 180mm 130mm 85mm 20mm 10mm 140mm 75mm 20mm 25mm 220mm 80mm 25mm 180mm 110mm 40mm 35mm 190mm 45mm 90mm 22mm 55mm 120mm 150mm 320mm 120mm 25mm 180mm 95mm 80mm 190mm 140mm 10mm 200mm 15mm 17mm 12mm 300mm 95mm 200mm 17mm 80mm 17mm 110mm 100mm 50mm 60mm 50mm 80mm 60mm 75mm 35mm 60mm 95mm 200mm 90mm 12mm 40mm 55mm 55mm 45mm 75mm 95mm 90mm 170mm 75mm 15mm 135mm 10mm 130mm 30mm 30mm 40mm 160mm 100mm 55mm 100mm 45mm 340mm 170mm 200mm 85mm 140mm 70mm 165mm 105mm 12mm 80mm 60mm 15mm 110mm 200mm 160mm 40mm 65mm 65mm 130mm 85mm 105mm 120mm 170mm 150mm 190mm 130mm 45mm
Assembly Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots Slots
Locking Style None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None
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