M8-1.25 x 50mm ISO 4762 Hex Drive Grade Class 12.9 Black Oxide Alloy Steel Socket Cap Screw - Full Thread / THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 22.00 MILLIMETERS NOMINAL FASTENER LENGTH: 49.50 MILLIMETERS MINIMUM AND 50.50 MILLIMETERS MAXIMUM HEAD STYLE: C44 FILLISTER HEAD DIAMETER: 12.73 MILLIMETERS MINIMUM AND 13.27 MILLIMETERS MAXIMUM HEAD HEIGHT: 7.64 MILLIMETERS MINIMUM AND 8.00 MILLIMETERS MAXIMUM INTERNAL DRIVE STYLE: D5 HEXAGON END ITEM IDENTIFICATION: MRAP BUFFALO MK2A2 NOMINAL THREAD DIAMETER: 8.0 MILLIMETERS WIDTH ACROSS FLATS: 6.020 MILLIMETERS MINIMUM AND 6.140 MILLIMETERS MAXIMUM MINIMUM TENSILE STRENGTH: 177000 POUNDS PER SQUARE INCH HARDNESS RATING: 39.0 ROCKWELL C MINIMUM OVERALL AND 44.0 ROCKWELL C MAXIMUM MINIMUM YIELD STRENGTH: 1100 MEGAPASCALS THREAD PITCH IN MILLIMETERS: 1.25 SPECIAL FEATURES: FINISH IS THERMAL OR CHEMICAL BLACK OXIDE. COLOR: BLACK OVERALL MATERIAL: STEEL OVERALL MATERIAL DOCUMENT AND CLASSIFICATION: ISO 898 CLASS 12.9 INTERNATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL SURFACE TREATMENT: OXIDE OVERALL THREAD SERIES DESIGNATOR: M