Atkore International Datasheets for Screws

A screw is a wide-encompassing type of hardware fastener that attributes its mechanical capabilities to the helical groove that extends around the circumference of the device's shank. These threads provide the friction and traction that serves a screw's purpose: to assemble or position two workpieces in relation to each other. While used synonymously, screws and bolts are not mechanical clones.


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Product Name Notes
1 INCH 1 LENGTH - DECIMAL 1 LENGTH - FRACTIONAL 1/2 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES SAE J429 2, ANSI B1.1, ASTM A307 APPLICABLE STANDARD 1/2 NOMINAL DIAMETER -...
1 INCH 1 LENGTH - DECIMAL 1 LENGTH - FRACTIONAL 1/4 INCH NOMINAL DIAMETER 20 TPI 1/4 NOMINAL DIAMETER - FRACTIONAL .25 NOMINAL DIAMETER - DECIMAL HEX HEAD STYLE POWER-STRUT[R]...
1 INCH 1 LENGTH - DECIMAL 1 LENGTH - FRACTIONAL 1/4 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 1/4 NOMINAL DIAMETER - FRACTIONAL .25 NOMINAL DIAMETER - DECIMAL ROUND HEAD STYLE...
1 INCH 1 LENGTH - DECIMAL 1 LENGTH - FRACTIONAL 1/4 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES SAE J429 2, ANSI B1.1, ASTM A307 APPLICABLE STANDARD 1/4 NOMINAL DIAMETER -...
1 INCH 1 LENGTH - DECIMAL 1 LENGTH - FRACTIONAL 3/8 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 3/8 NOMINAL DIAMETER - FRACTIONAL .375 NOMINAL DIAMETER - DECIMAL ROUND HEAD STYLE...
1 INCH 1 LENGTH - DECIMAL 1 LENGTH - FRACTIONAL 3/8 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES SAE J429 2, ANSI B1.1, ASTM A307 APPLICABLE STANDARD 3/8 NOMINAL DIAMETER -...
1 INCH 1 LENGTH - DECIMAL 1 LENGTH - FRACTIONAL 5/16 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 5/16 NOMINAL DIAMETER - FRACTIONAL .3125 NOMINAL DIAMETER - DECIMAL ROUND HEAD STYLE...
1-1/2 INCH 1.5 LENGTH - DECIMAL 1-1/2 LENGTH - FRACTIONAL 1/4 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES SAE J429 2, ANSI B1.1, ASTM A307 APPLICABLE STANDARD 1/4 NOMINAL DIAMETER -...
1-1/2 INCH 1.5 LENGTH - DECIMAL 1-1/2 LENGTH - FRACTIONAL 3/8 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES SAE J429 2, ANSI B1.1, ASTM A307 APPLICABLE STANDARD 3/8 NOMINAL DIAMETER -...
1-1/2 INCH 1.5 LENGTH - DECIMAL 1-1/2 LENGTH - FRACTIONAL 5/16 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES SAE J429, ASTM A307 APPLICABLE STANDARD 5/16 NOMINAL DIAMETER - FRACTIONAL .3125 NOMINAL...
1-1/4 INCH 1.25 LENGTH - DECIMAL 1-1/4 LENGTH - FRACTIONAL 1/2 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES SAE J429 2, ANSI B1.1, ASTM A307 APPLICABLE STANDARD 1/2 NOMINAL DIAMETER -...
1-1/4 INCH 1.25 LENGTH - DECIMAL 1-1/4 LENGTH - FRACTIONAL 1/4 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES SAE J429 2, ANSI B1.1, ASTM A307 APPLICABLE STANDARD 1/4 NOMINAL DIAMETER -...
1-1/4 INCH 1.25 LENGTH - DECIMAL 1-1/4 LENGTH - FRACTIONAL 3/8 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES SAE J429 2, ANSI B1.1, ASTM A307 APPLICABLE STANDARD 3/8 NOMINAL DIAMETER -...
1-1/4 INCH 1.25 LENGTH - DECIMAL 1-1/4 LENGTH - FRACTIONAL 5/16 INCH NOMINAL DIAMETER UNC-2 THREAD SERIES 18 TPI ANSI B1.1 APPLICABLE STANDARD 5/16 NOMINAL DIAMETER - FRACTIONAL .3125 NOMINAL...
1-1/4 INCH 1.25 LENGTH - DECIMAL 1-1/4 LENGTH - FRACTIONAL 5/16 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 5/16 NOMINAL DIAMETER - FRACTIONAL .3125 NOMINAL DIAMETER - DECIMAL ROUND HEAD STYLE...
1-3/4 INCH 1.75 LENGTH - DECIMAL 1-3/4 LENGTH - FRACTIONAL 1/2 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES SAE J429 2, ANSI B1.1, ASTM A307 APPLICABLE STANDARD 1/2 NOMINAL DIAMETER -...
2 INCH 2 LENGTH - DECIMAL 2 LENGTH - FRACTIONAL 1/2 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES SAE J429 2, ANSI B1.1, ASTM A307 APPLICABLE STANDARD 1/2 NOMINAL DIAMETER -...
2 INCH 2 LENGTH - DECIMAL 2 LENGTH - FRACTIONAL 3/8 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES SAE J429 2, ANSI B1.1, ASTM A307 APPLICABLE STANDARD 3/8 NOMINAL DIAMETER -...
3/4 INCH .75 LENGTH - DECIMAL 3/4 LENGTH - FRACTIONAL 1/2 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES SAE J429 2, ANSI B1.1, ASTM A307 APPLICABLE STANDARD 1/2 NOMINAL DIAMETER -...
3/4 INCH .75 LENGTH - DECIMAL 3/4 LENGTH - FRACTIONAL 1/4 INCH NOMINAL DIAMETER UNC-2 THREAD SERIES 20 TPI ANSI B1.1 APPLICABLE STANDARD 1/4 NOMINAL DIAMETER - FRACTIONAL .25 NOMINAL...
3/4 INCH .75 LENGTH - DECIMAL 3/4 LENGTH - FRACTIONAL 1/4 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 1/4 NOMINAL DIAMETER - FRACTIONAL .25 NOMINAL DIAMETER - DECIMAL ROUND HEAD STYLE...
3/4 INCH .75 LENGTH - DECIMAL 3/4 LENGTH - FRACTIONAL 1/4 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES SAE J429 2, ANSI B1.1, ASTM A307 APPLICABLE STANDARD 1/4 NOMINAL DIAMETER -...
3/4 INCH .75 LENGTH - DECIMAL 3/4 LENGTH - FRACTIONAL 1/4 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES SAE J429, ASTM A307 APPLICABLE STANDARD 1/4 NOMINAL DIAMETER - FRACTIONAL .25 NOMINAL...
3/4 INCH .75 LENGTH - DECIMAL 3/4 LENGTH - FRACTIONAL 3/8 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES SAE J429 2, ANSI B1.1, ASTM A307 APPLICABLE STANDARD 3/8 NOMINAL DIAMETER -...
ASTM A307 CARBON STEEL MATERIAL 1 INCH 1 LENGTH - DECIMAL 1 LENGTH - FRACTIONAL 1/2 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES SAE J429 APPLICABLE STANDARD 1/2 NOMINAL DIAMETER -...
ASTM A307 CARBON STEEL MATERIAL 1 INCH 1 LENGTH - DECIMAL 1 LENGTH - FRACTIONAL 5/16 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES SAE J429 APPLICABLE STANDARD 5/16 NOMINAL DIAMETER -...
ASTM A307 CARBON STEEL MATERIAL 5/8 INCH .625 LENGTH - DECIMAL 5/8 LENGTH - FRACTIONAL 1/4 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES SAE J429 APPLICABLE STANDARD 1/4 NOMINAL DIAMETER -...
ASTM A307, SAE J429 MATERIAL 1 INCH 1 LENGTH - DECIMAL 1 LENGTH - FRACTIONAL 3/8 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 16 TPI 3/8 NOMINAL DIAMETER - FRACTIONAL .375...
ASTM A307, SAE J429 MATERIAL 1-1/2 INCH 1.5 LENGTH - DECIMAL 1-1/2 LENGTH - FRACTIONAL 1/2 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 13 TPI 1/2 NOMINAL DIAMETER - FRACTIONAL .5...
ASTM A307, SAE J429 MATERIAL 1-1/2 INCH 1.5 LENGTH - DECIMAL 1-1/2 LENGTH - FRACTIONAL 1/4 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 20 TPI 1/4 NOMINAL DIAMETER - FRACTIONAL .25...
ASTM A307, SAE J429 MATERIAL 1-1/2 INCH 1.5 LENGTH - DECIMAL 1-1/2 LENGTH - FRACTIONAL 3/8 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 16 TPI 3/8 NOMINAL DIAMETER - FRACTIONAL .375...
ASTM A307, SAE J429 MATERIAL 1-1/4 INCH 1.25 LENGTH - DECIMAL 1-1/4 LENGTH - FRACTIONAL 3/8 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 16 TPI 3/8 NOMINAL DIAMETER - FRACTIONAL .375...
ASTM A307, SAE J429 MATERIAL 1-1/4 INCH 1.25 LENGTH - DECIMAL 1-1/4 LENGTH - FRACTIONAL 5/16 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 18 TPI 5/16 NOMINAL DIAMETER - FRACTIONAL .3125...
ASTM A307, SAE J429 MATERIAL 1-3/16 INCH 1.1875 LENGTH - DECIMAL 1-3/16 LENGTH - FRACTIONAL 1/2 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 13 TPI 1/2 NOMINAL DIAMETER - FRACTIONAL .5...
ASTM A307, SAE J429 MATERIAL 1-3/4 INCH 1.75 LENGTH - DECIMAL 1-3/4 LENGTH - FRACTIONAL 1/2 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 13 TPI 1/2 NOMINAL DIAMETER - FRACTIONAL .5...
ASTM A307, SAE J429 MATERIAL 15/16 INCH .9375 LENGTH - DECIMAL 15/16 LENGTH - FRACTIONAL 1/2 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 13 TPI 1/2 NOMINAL DIAMETER - FRACTIONAL .5...
ASTM A307, SAE J429 MATERIAL 2 INCH 2 LENGTH - DECIMAL 2 LENGTH - FRACTIONAL 1/2 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 13 TPI 1/2 NOMINAL DIAMETER - FRACTIONAL .5...
ASTM A307, SAE J429 MATERIAL 2 INCH 2 LENGTH - DECIMAL 2 LENGTH - FRACTIONAL 3/8 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 16 TPI 3/8 NOMINAL DIAMETER - FRACTIONAL .375...
ASTM A307, SAE J429 MATERIAL 2-1/2 INCH 2.5 LENGTH - DECIMAL 2-1/2 LENGTH - FRACTIONAL 1/2 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 13 TPI 1/2 NOMINAL DIAMETER - FRACTIONAL .5...
ASTM A307, SAE J429 MATERIAL 2-1/2 INCH 2.5 LENGTH - DECIMAL 2-1/2 LENGTH - FRACTIONAL 3/8 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 16 TPI 3/8 NOMINAL DIAMETER - FRACTIONAL .375...
ASTM A307, SAE J429 MATERIAL 2-1/4 INCH 2.25 LENGTH - DECIMAL 2-1/4 LENGTH - FRACTIONAL 1/2 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 13 TPI 1/2 NOMINAL DIAMETER - FRACTIONAL .5...
ASTM A307, SAE J429 MATERIAL 3/4 INCH .75 LENGTH - DECIMAL 3/4 LENGTH - FRACTIONAL 1/4 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 20 TPI 1/4 NOMINAL DIAMETER - FRACTIONAL .25...
ASTM A307, SAE J429 MATERIAL 3/4 INCH .75 LENGTH - DECIMAL 3/4 LENGTH - FRACTIONAL 3/8 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 16 TPI 3/8 NOMINAL DIAMETER - FRACTIONAL .375...
ASTM A307, SAE J429 MATERIAL 7/16 INCH .4375 LENGTH - DECIMAL 7/16 LENGTH - FRACTIONAL 1/4 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 20 TPI 1/4 NOMINAL DIAMETER - FRACTIONAL .25...
ASTM A307, SAE J429 MATERIAL 7/8 INCH .875 LENGTH - DECIMAL 7/8 LENGTH - FRACTIONAL 3/8 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 16 TPI 3/8 NOMINAL DIAMETER - FRACTIONAL .375...
FLANGED TYPE ELECTROGALVANIZED FINISH 1-1/2 INCH 1/2 INCH NOMINAL DIAMETER UNC-2 THREAD SERIES ANSI B1.1 APPLICABLE STANDARD CASE HARDENED PROCESS ASTM A307, SAE J429 GRADE 2 MATERIAL SPECIFICATION
HEX TYPE MILD STEEL MATERIAL 1 1/2 INCH 1 1/2 LENGTH - FRACTIONAL 1/2 INCH NOMINAL DIAMETER UNC THREAD SERIES MACHINED, CASE HARDENED PROCESS 1/2 NOMINAL DIAMETER - FRACTIONAL ASTM...
HEX TYPE MILD STEEL MATERIAL 1 3/16 INCH 1 3/16 LENGTH - FRACTIONAL 1/2 INCH NOMINAL DIAMETER UNC THREAD SERIES MACHINED, CASE HARDENED PROCESS 1/2 NOMINAL DIAMETER - FRACTIONAL ASTM...
HEX TYPE MILD STEEL MATERIAL 15/16 INCH 15/16 LENGTH - FRACTIONAL 1/2 INCH NOMINAL DIAMETER UNC THREAD SERIES MACHINED, CASE HARDENED PROCESS 1/2 NOMINAL DIAMETER - FRACTIONAL ASTM A307, SAE...
HEX TYPE MILD STEEL MATERIAL ELECTROGALVANIZED FINISH 1 1/4 INCH 1 1/4 LENGTH - FRACTIONAL 1/2 INCH NOMINAL DIAMETER UNC THREAD SERIES MACHINED, CASE HARDENED PROCESS 1/2 NOMINAL DIAMETER -...
HEX TYPE MILD STEEL MATERIAL ELECTROGALVANIZED FINISH 1 1/4 INCH 1 1/4 LENGTH - FRACTIONAL 1/4 INCH NOMINAL DIAMETER UNC THREAD SERIES MACHINED, CASE HARDENED PROCESS 1/4 NOMINAL DIAMETER -...
HEX TYPE MILD STEEL MATERIAL ELECTROGALVANIZED FINISH 1 INCH 1/4 INCH NOMINAL DIAMETER UNC THREAD SERIES MACHINED, CASE HARDENED PROCESS 1/4 NOMINAL DIAMETER - FRACTIONAL ASTM A307, SAE J429 GRADE...
HEX TYPE MILD STEEL MATERIAL ELECTROGALVANIZED FINISH 2 1/2 INCH 2 1/2 LENGTH - FRACTIONAL 3/8 INCH NOMINAL DIAMETER UNC THREAD SERIES MACHINED, CASE HARDENED PROCESS 3/8 NOMINAL DIAMETER -...
HEX TYPE STEEL MATERIAL 1 5/16 INCH 1.938 LENGTH - DECIMAL 1/2 INCH NOMINAL DIAMETER 13 TPI .5 NOMINAL DIAMETER - DECIMAL POWER-STRUT[R] BRAND FINISH/COATING ELECTROGALVANIZED LENGTH - DECIMAL -...
SAE J429, ASTM A307 STEEL MATERIAL 1 INCH 1 LENGTH - DECIMAL 1 LENGTH - FRACTIONAL 3/8 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 16 TPI 3/8 NOMINAL DIAMETER - FRACTIONAL...
SAE J429, ASTM A307 STEEL MATERIAL 1-1/2 INCH 1.5 LENGTH - DECIMAL 1-1/2 LENGTH - FRACTIONAL 3/8 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 16 TPI 3/8 NOMINAL DIAMETER - FRACTIONAL...
SAE J429, ASTM A307 STEEL MATERIAL 1-1/4 INCH 1.25 LENGTH - DECIMAL 1-1/4 LENGTH - FRACTIONAL 3/8 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 16 TPI 3/8 NOMINAL DIAMETER - FRACTIONAL...
SAE J429, ASTM A307 STEEL MATERIAL 2 INCH 2 LENGTH - DECIMAL 2 LENGTH - FRACTIONAL 3/8 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 16 TPI 3/8 NOMINAL DIAMETER - FRACTIONAL...
SAE J429, ASTM A307 STEEL MATERIAL 3/4 INCH .75 LENGTH - DECIMAL 3/4 LENGTH - FRACTIONAL 3/8 INCH NOMINAL DIAMETER UNC-2A THREAD SERIES 16 TPI 3/8 NOMINAL DIAMETER - FRACTIONAL...
SLOTTED TYPE ELECTROGALVANIZED FINISH 1 INCH 5/16 INCH NOMINAL DIAMETER UNC-2 THREAD SERIES ANSI B1.1 APPLICABLE STANDARD CASE HARDENED PROCESS ASTM A307, SAE J429 GRADE 2 MATERIAL SPECIFICATION HEX HEAD...
SLOTTED TYPE ELECTROGALVANIZED FINISH 1-1/2 INCH 5/16 INCH NOMINAL DIAMETER UNC-2 THREAD SERIES ANSI B1.1 APPLICABLE STANDARD CASE HARDENED PROCESS ASTM A307, SAE J429 GRADE 2 MATERIAL SPECIFICATION HEX HEAD...
SLOTTED TYPE ELECTROGALVANIZED FINISH 1-1/4 INCH 3/8 INCH NOMINAL DIAMETER UNC-2 THREAD SERIES ANSI B1.1 APPLICABLE STANDARD CASE HARDENED PROCESS ASTM A307, SAE J429 GRADE 2 MATERIAL SPECIFICATION HEX HEAD...
SLOTTED TYPE MILD STEEL MATERIAL ELECTROGALVANIZED FINISH 1 1/4 INCH 1 1/4 LENGTH - FRACTIONAL 1/4 INCH NOMINAL DIAMETER CASE HARDENED PROCESS 1/4 NOMINAL DIAMETER - FRACTIONAL SAE J429, ASTM...
SLOTTED TYPE MILD STEEL MATERIAL ELECTROGALVANIZED FINISH 1 1/4 INCH 1 1/4 LENGTH - FRACTIONAL 3/8 INCH NOMINAL DIAMETER CASE HARDENED PROCESS 3/8 NOMINAL DIAMETER - FRACTIONAL SAE J429, ASTM...
SLOTTED TYPE MILD STEEL MATERIAL ELECTROGALVANIZED FINISH 1 1/4 INCH 1 1/4 LENGTH - FRACTIONAL 5/16 INCH NOMINAL DIAMETER CASE HARDENED PROCESS 5/16 NOMINAL DIAMETER - FRACTIONAL SAE J429, ASTM...
SLOTTED TYPE MILD STEEL MATERIAL ELECTROGALVANIZED FINISH 1 INCH 1/4 INCH NOMINAL DIAMETER CASE HARDENED PROCESS 1/4 NOMINAL DIAMETER - FRACTIONAL SAE J429, ASTM A307 MATERIAL SPECIFICATION HEX HEAD STYLE...
SLOTTED TYPE MILD STEEL MATERIAL ELECTROGALVANIZED FINISH 1 INCH 5/16 INCH NOMINAL DIAMETER CASE HARDENED PROCESS 5/16 NOMINAL DIAMETER - FRACTIONAL SAE J429, ASTM A307 MATERIAL SPECIFICATION HEX HEAD STYLE...
SLOTTED TYPE MILD STEEL MATERIAL ELECTROGALVANIZED FINISH 1/2 INCH 1/2 LENGTH - FRACTIONAL 1/4 INCH NOMINAL DIAMETER CASE HARDENED PROCESS 1/4 NOMINAL DIAMETER - FRACTIONAL SAE J429, ASTM A307 MATERIAL...
SLOTTED TYPE MILD STEEL MATERIAL ELECTROGALVANIZED FINISH 5/8 INCH 5/8 LENGTH - FRACTIONAL 1/4 INCH NOMINAL DIAMETER CASE HARDENED PROCESS 1/4 NOMINAL DIAMETER - FRACTIONAL SAE J429, ASTM A307 MATERIAL...
STEEL MATERIAL 1 1/2 INCH 1.5 LENGTH - DECIMAL 1 1/2 LENGTH - FRACTIONAL 3/8 INCH NOMINAL DIAMETER 3/8 NOMINAL DIAMETER - FRACTIONAL .375 NOMINAL DIAMETER - DECIMAL ROUND HEAD...
STEEL MATERIAL 1 1/4 INCH 1.25 LENGTH - DECIMAL 1 1/4 LENGTH - FRACTIONAL 1/4 INCH NOMINAL DIAMETER 1/4 NOMINAL DIAMETER - FRACTIONAL .25 NOMINAL DIAMETER - DECIMAL ROUND HEAD...
STEEL MATERIAL 1 1/4 INCH 1.25 LENGTH - DECIMAL 1 1/4 LENGTH - FRACTIONAL 3/8 INCH NOMINAL DIAMETER 3/8 NOMINAL DIAMETER - FRACTIONAL .375 NOMINAL DIAMETER - DECIMAL ROUND HEAD...
STEEL MATERIAL 1 INCH 1 LENGTH - DECIMAL 1 LENGTH - FRACTIONAL 3/8 INCH NOMINAL DIAMETER 3/8 NOMINAL DIAMETER - FRACTIONAL .375 NOMINAL DIAMETER - DECIMAL ROUND HEAD STYLE POWER-STRUT[R]...
STEEL MATERIAL 3/4 INCH .75 LENGTH - DECIMAL 3/4 LENGTH - FRACTIONAL 1/4 INCH NOMINAL DIAMETER 1/4 NOMINAL DIAMETER - FRACTIONAL .25 NOMINAL DIAMETER - DECIMAL ROUND HEAD STYLE POWER-STRUT[R]...