12mm Shoulder x 16mm Shoulder Length x M10-1.5 Black Oxide/Plain Finish Class 12.9 Alloy Steel Socket Shoulder Bolt / THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 15.60 MILLIMETERS MINIMUM AND 16.40 MILLIMETERS MAXIMUM FASTENER LENGTH: 31.60 MILLIMETERS MINIMUM AND 32.65 MILLIMETERS MAXIMUM HEAD STYLE: C25 DEE HEAD DIAMETER: 17.73 MILLIMETERS MINIMUM AND 18.00 MILLIMETERS MAXIMUM HEAD HEIGHT: 7.78 MILLIMETERS MINIMUM AND 8.00 MILLIMETERS MAXIMUM DISTANCE FROM CENTERLINE TO FLAT: 9.00 MILLIMETERS NOMINAL SHOULDER DIAMETER: 12.00 MILLIMETERS NOMINAL SHOULDER LENGTH: 16.00 MILLIMETERS NOMINAL INTERNAL DRIVE STYLE: D5 HEXAGON END ITEM IDENTIFICATION: NSN: 2320-01-529-2251; MRAP BUFFALO MK2A2 NOMINAL THREAD DIAMETER: 10.0 MILLIMETERS WIDTH ACROSS FLATS: 6.02 MILLIMETERS MINIMUM AND 6.10 MILLIMETERS MAXIMUM THREAD PITCH IN MILLIMETERS: 1.5 PART NAME ASSIGNED BY CONTROLLING AGENCY: SCREW SHOULDER SPECIAL FEATURES: FINISH: BLACK OXIDE (THERMAL OR CHEMICAL) ON UN-GROUND SURFACES; THREADS 5G6G MATERIAL: STEEL OVERALL THREAD SERIES DESIGNATOR: M