1" Shoulder x 2-3/4" Shoulder Length x 3/4"-10 Black Oxide/Plain Finish Alloy Steel Socket Shoulder Bolt / THREAD CLASS: 3A THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 1.000 INCHES NOMINAL FASTENER LENGTH: 4.385 INCHES NOMINAL HEAD STYLE: C117 CHAMFER FLANGE HEAD HEIGHT: 0.610 INCHES MINIMUM AND 0.625 INCHES MAXIMUM WIDTH BETWEEN FLATS: 0.500 INCHES MINIMUM AND 0.505 INCHES MAXIMUM EXTENDED WASHER DIAMETER: 0.996 INCHES MINIMUM AND 0.998 INCHES MAXIMUM LOCKING FEATURE: SELF-LOCKING OVERALL END ITEM IDENTIFICATION: MRAP-COUGAR NOMINAL THREAD DIAMETER: 0.750 INCHES THREAD QUANTITY PER INCH: 10 PART NAME ASSIGNED BY CONTROLLING AGENCY: 1" SHOULDER X2-3/4X3/4-10 THRD ALLOW STEEL SCREW SPECIAL FEATURES: ROOVE JUST UNDER HEAD IS 0.125 INCHES IN LENGTH AND 0.977 INCHES WIDE; DISTANCE FROM SECOND GROOVE TO END OF THREADED SECTION IS 0.97-1.00 INCHES IN LENGTH AND 0.616-0.638 WIDE COLOR: BLACK OVERALL MATERIAL: STEEL OVERALL SURFACE TREATMENT: OXIDE OVERALL THREAD SERIES DESIGNATOR: UNC