1/4"-20 x 1/2" ASTM F835 Hex Drive Black Oxide Finish Alloy Steel Flat Socket Cap Screw / THREAD DIRECTION: RIGHT-HAND FASTENER LENGTH: 0.500 INCHES NOMINAL END ITEM IDENTIFICATION: AUXILIARY WINCH CABLE GUIDE ASSEMBLY NOMINAL THREAD DIAMETER: 0.250 INCHES THREAD QUANTITY PER INCH: 20 PART NAME ASSIGNED BY CONTROLLING AGENCY: FLAT HEAD SOCKET CAP SCREW SPECIAL FEATURES: SCREW DRIVE 0.156 INCH;FNL SURFACE TREATMENT: BLACK CHEMICAL FINISH FASTENER THREAD SERIES DESIGNATOR: UNC