J.Lanfranco Fastener Systems Inc. Datasheets for Locknuts

Locknuts are a type of prevailing-torque fastener that resists loosening under vibration and torque. They differ from standard nuts because they typically have friction-increasing bearing surfaces (e.g., pitted grooves on flanges) or special internal thread-geometries.
Locknuts: Learn more

Product Name	Notes
EUM Self-Lkg Hex Nut With Nylon Insert -- EUM040070QVZO EUM Self-Lkg Hex Nut With Nylon Insert -- EUM040070ZHST EUM Self-Lkg Hex Nut With Nylon Insert -- EUM050080QVZO EUM Self-Lkg Hex Nut With Nylon Insert -- EUM050080ZHST EUM Self-Lkg Hex Nut With Nylon Insert -- EUM060100QVZO EUM Self-Lkg Hex Nut With Nylon Insert -- EUM060100ZHST EUM Self-Lkg Hex Nut With Nylon Insert -- EUM080125QVZO EUM Self-Lkg Hex Nut With Nylon Insert -- EUM080125ZHST EUM Self-Lkg Hex Nut With Nylon Insert -- EUM100150QVZO EUM Self-Lkg Hex Nut With Nylon Insert -- EUM100150ZHST EUM Self-Lkg Hex Nut With Nylon Insert -- EUM120175QVZO EUM Self-Lkg Hex Nut With Nylon Insert -- EUM120175ZHST EUM Self-Lkg Hex Nut With Nylon Insert -- EUM140200QVZO EUM Self-Lkg Hex Nut With Nylon Insert -- EUM140200ZHST EUM Self-Lkg Hex Nut With Nylon Insert -- EUM160200QVZO EUM Self-Lkg Hex Nut With Nylon Insert -- EUM160200ZHST	All metal reusable slotted self-locking hexagon nut, with nylon insert.
All Metal Reusable Slotted Self-Locking Hexagon Nut -- THM040070 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THM050080 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THM060100 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THM080125 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THM100150 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THM120175 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THM140200 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THM160200 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THM180250 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THM200250 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THM220250 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THM240300 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THM270300 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THM300350 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THM330350 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THM360400 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THM390400 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THM420450 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THM450450 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THU040070 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THU050080 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THU060100 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THU080125 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THU100150 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THU120175 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THU140200 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THU160200 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THU180250 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THU200250 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THU220250 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THU240300 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THU270300 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THU300350 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THU330350 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THU360400 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THU390400 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THU420450 All Metal Reusable Slotted Self-Locking Hexagon Nut -- THU450450	All metal reusable slotted self-locking hexagon nut.
SRF Nut -- SRF	All metal self-locking hexagon flange nut. Locking by deformation of the last threads given by the recessions at the top of the nut.
GSL Nut -- GSL	All metal self-locking hexagon nut, with marking on the top of the nut NF EN ISO 7719.
Star Nut -- HUS	All metal self-locking hexagon nut. Locking by deformation of the last threads given by the recessions at the top of the nut, standard NF EN ISO 7719 (NFE 2541).
ESF All Metal Self-Locking Clinch Nut -- ESF040070ZHST ESF All Metal Self-Locking Clinch Nut -- ESF060100ZHST ESF All Metal Self-Locking Clinch Nut -- ESF080125ZHST	All metal self-locking riveting nut, with locking slot.
ESF All Metal Self-Locking Clinch Nut -- ESF040070QVZO ESF All Metal Self-Locking Clinch Nut -- ESF060100QVZO ESF All Metal Self-Locking Clinch Nut -- ESF080125QVZO	All metal, reusable, slotted self-locking clinch nut.
HCB One-Slot Self-Locking Hexagon Nut -- HCB	Definition: All metal self-locking hexagon nut with one slot. Sizes: ISO 4033. Threading: Standard to ISO 965-2. Characteristics and performance test: HCT: NF EN ISO 2320/ ISO 898-2 NF EN...
HMP Nut Slf-Lkg Nut with Nylon Insert -- HMP HUP Nut Slf-Lkg Nut with Nylon Insert -- HUP	Self-locking nut with nylon insert.
ESL Slotted Self-Locking Hexagon Nut -- ESL020040QVZO ESL Slotted Self-Locking Hexagon Nut -- ESL020040ZHST ESL Slotted Self-Locking Hexagon Nut -- ESL025045QVZO ESL Slotted Self-Locking Hexagon Nut -- ESL025045ZHST ESL Slotted Self-Locking Hexagon Nut -- ESL030050QVZO ESL Slotted Self-Locking Hexagon Nut -- ESL030050ZHST ESL Slotted Self-Locking Hexagon Nut -- ESL040070QVZO ESL Slotted Self-Locking Hexagon Nut -- ESL040070ZHST ESL Slotted Self-Locking Hexagon Nut -- ESL050080QVZO ESL Slotted Self-Locking Hexagon Nut -- ESL050080ZHST ESL Slotted Self-Locking Hexagon Nut -- ESL060100QVZO ESL Slotted Self-Locking Hexagon Nut -- ESL060100ZHST ESL Slotted Self-Locking Hexagon Nut -- ESL070100QVZO ESL Slotted Self-Locking Hexagon Nut -- ESL070100ZHST ESL Slotted Self-Locking Hexagon Nut -- ESL080125QVZO ESL Slotted Self-Locking Hexagon Nut -- ESL080125ZHST ESL Slotted Self-Locking Hexagon Nut -- ESL100150QVZO ESL Slotted Self-Locking Hexagon Nut -- ESL100150ZHST ESL Slotted Self-Locking Hexagon Nut -- ESL120175QVZO ESL Slotted Self-Locking Hexagon Nut -- ESL120175ZHST ESL Slotted Self-Locking Hexagon Nut -- ESL140200QVZO ESL Slotted Self-Locking Hexagon Nut -- ESL140200ZHST ESL Slotted Self-Locking Hexagon Nut -- ESL160200QVZO ESL Slotted Self-Locking Hexagon Nut -- ESL160200ZHST ESL Slotted Self-Locking Hexagon Nut -- ESL180250QVZO ESL Slotted Self-Locking Hexagon Nut -- ESL180250ZHST ESL Slotted Self-Locking Hexagon Nut -- ESL200250QVZO ESL Slotted Self-Locking Hexagon Nut -- ESL200250ZHST ESL Slotted Self-Locking Hexagon Nut -- ESL220250QVZO ESL Slotted Self-Locking Hexagon Nut -- ESL240300QVZO ESL Slotted Self-Locking Hexagon Nut -- ESL270300QVZO ESL Slotted Self-Locking Hexagon Nut -- ESL300350QVZO ESL Slotted Self-Locking Hexagon Nut -- ESL330350QVZO ESL Slotted Self-Locking Hexagon Nut -- ESL360400QVZO ESL Slotted Self-Locking Hexagon Nut -- ESLH00UNC ESL Slotted Self-Locking Hexagon Nut -- ESLH00UNF ESL Slotted Self-Locking Hexagon Nut -- ESLI00UNC ESL Slotted Self-Locking Hexagon Nut -- ESLI00UNF ESL Slotted Self-Locking Hexagon Nut -- ESLK00UNC ESL Slotted Self-Locking Hexagon Nut -- ESLK00UNF ESL Slotted Self-Locking Hexagon Nut -- ESLL00UNC ESL Slotted Self-Locking Hexagon Nut -- ESLL00UNF ESL Slotted Self-Locking Hexagon Nut -- ESLM00UNC ESL Slotted Self-Locking Hexagon Nut -- ESLM00UNF ESL Slotted Self-Locking Hexagon Nut -- ESLN00UNC ESL Slotted Self-Locking Hexagon Nut -- ESLN00UNF ESL Slotted Self-Locking Hexagon Nut -- ESLO00UNC ESL Slotted Self-Locking Hexagon Nut -- ESLO00UNF ESL Slotted Self-Locking Hexagon Nut -- ESLP00UNC ESL Slotted Self-Locking Hexagon Nut -- ESLP00UNF ESL Slotted Self-Locking Hexagon Nut -- ESLQ00UNC ESL Slotted Self-Locking Hexagon Nut -- ESLQ00UNF ESL Slotted Self-Locking Hexagon Nut -- ESLR00UNC ESL Slotted Self-Locking Hexagon Nut -- ESLR00UNF ESL Slotted Self-Locking Hexagon Nut -- ESLS00UNC ESL Slotted Self-Locking Hexagon Nut -- ESLS00UNF ESL Slotted Self-Locking Hexagon Nut -- ESLT00UNC ESL Slotted Self-Locking Hexagon Nut -- ESLT00UNF ESL Slotted Self-Locking Hexagon Nut -- ESLV00UNC ESL Slotted Self-Locking Hexagon Nut -- ESLV00UNF ESL Slotted Self-Locking Hexagon Nut -- ESLX00UNC ESL Slotted Self-Locking Hexagon Nut -- ESLX00UNF ESL Slotted Self-Locking Hexagon Nut -- ESLY00UNC ESL Slotted Self-Locking Hexagon Nut -- ESLY00UNF ESL Slotted Self-Locking Hexagon Nut -- ESLZ00UNC ESL Slotted Self-Locking Hexagon Nut -- ESLZ00UNF	The ESL's two self-locking slots make it ideal in any application subjected to high vibration, shock, impact, heavy loads, and high temperatures. The ESL provides unparalleled locking ability without seizing...
HCE One-Slot Self-Locking Hexagon Nut -- HCE HCT One-Slot Self-Locking Hexagon Nut -- HCT	The HCE line of locknuts provide a reusable one-piece locknut able to withstand high temperatures where a nylon insert would fail.
ERM Slotted Self-Locking Hexagon Nut -- ERM040070QVZO ERM Slotted Self-Locking Hexagon Nut -- ERM050080QVZO ERM Slotted Self-Locking Hexagon Nut -- ERM060100QVZO ERM Slotted Self-Locking Hexagon Nut -- ERM080125QVZO ERM Slotted Self-Locking Hexagon Nut -- ERM100150QVZO ERM Slotted Self-Locking Hexagon Nut -- ERM120175QVZO ERM Slotted Self-Locking Hexagon Nut -- ERM140200QVZO ERM Slotted Self-Locking Hexagon Nut -- ERM160200QVZO	The one-piece ERM is a great time saver with its integrated disc spring washer. The result: quick installations and absolute tension maintained under dynamic loads.
ERM Slotted Self-Locking Hexagon Nut -- ERM040070ZHST ERM Slotted Self-Locking Hexagon Nut -- ERM050080ZHST ERM Slotted Self-Locking Hexagon Nut -- ERM060100ZHST ERM Slotted Self-Locking Hexagon Nut -- ERM080125ZHST ERM Slotted Self-Locking Hexagon Nut -- ERM100150ZHST ERM Slotted Self-Locking Hexagon Nut -- ERM120175ZHST ERM Slotted Self-Locking Hexagon Nut -- ERM140200ZHST ERM Slotted Self-Locking Hexagon Nut -- ERM160200ZHST ERM Slotted Self-Locking Hexagon Nut -- ERMIOOUNC ERM Slotted Self-Locking Hexagon Nut -- ERMIOOUNF ERM Slotted Self-Locking Hexagon Nut -- ERMKOOUNC ERM Slotted Self-Locking Hexagon Nut -- ERMKOOUNF ERM Slotted Self-Locking Hexagon Nut -- ERMLOOUNC ERM Slotted Self-Locking Hexagon Nut -- ERMLOOUNF ERM Slotted Self-Locking Hexagon Nut -- ERMMOOUNC ERM Slotted Self-Locking Hexagon Nut -- ERMMOOUNF ERM Slotted Self-Locking Hexagon Nut -- ERMNOOUNC ERM Slotted Self-Locking Hexagon Nut -- ERMNOOUNF ERM Slotted Self-Locking Hexagon Nut -- ERMOOOUNC ERM Slotted Self-Locking Hexagon Nut -- ERMOOOUNF ERM Slotted Self-Locking Hexagon Nut -- ERMQOOUNC ERM Slotted Self-Locking Hexagon Nut -- ERMQOOUNF ERM Slotted Self-Locking Hexagon Nut -- ERMROOUNC ERM Slotted Self-Locking Hexagon Nut -- ERMROOUNF	The one-piece ERM is a great time saver. The ERM combines the performance of the ESL with an integrated disc spring washer. The result: Quick installations and absolute tension maintained...

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