10mm Shoulder x 20mm Shoulder Length x M8-1.25 Black Oxide/Plain Finish Class 12.9 Alloy Steel Socket Shoulder Bolt / THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 13.0 MILLIMETERS NOMINAL FASTENER LENGTH: 40.2 MILLIMETERS NOMINAL HEAD STYLE: C33 PAN NO. 2 HEAD DIAMETER: 15.73 MILLIMETERS MINIMUM AND 16.00 MILLIMETERS MAXIMUM HEAD HEIGHT: 6.78 MILLIMETERS MINIMUM AND 7.00 MILLIMETERS MAXIMUM INTERNAL DRIVE STYLE: D5 HEXAGON END ITEM IDENTIFICATION: MRAP-COUGAR NOMINAL THREAD DIAMETER: 8.0 MILLIMETERS WIDTH ACROSS FLATS: 5.02 MILLIMETERS MINIMUM AND 5.10 MILLIMETERS MAXIMUM NONSTANDARD THREAD PITCH DIAMETER: 1.0 TO 1.2 MILLIMETERS THREAD PITCH IN MILLIMETERS: 1.25 EXTERNAL THREAD TOLERANCE CLASS: 6G PART NAME ASSIGNED BY CONTROLLING AGENCY: 10MM SHOULDER X 20MM X M8-1.25CL 12.9 SCK HD SHOULDER SCREW MATERIAL: STEEL OVERALL SURFACE TREATMENT: OXIDE OVERALL THREAD SERIES DESIGNATOR: ISO M