M8-1.25 x 20mm DIN 7985 Phillips Drive Pan Head Zinc Finish Steel Machine Screw / THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 17.0 MILLIMETERS NOMINAL FASTENER LENGTH: 20.0 MILLIMETERS NOMINAL HEAD STYLE: C1 HEXAGON HEAD HEIGHT: 6.0 MILLIMETERS NOMINAL WIDTH BETWEEN FLATS: 13.0 MILLIMETERS NOMINAL END ITEM IDENTIFICATION: MRAP RG-33; MRAP - COUGAR; COMMON NSN - USED ON 7 MRAP VARIANTS AND 15 OTHER WEAPON SYSTEMS; MRAP - M-ATV; HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS) NOMINAL THREAD DIAMETER: 8.0 MILLIMETERS GRIP LENGTH: 3.0 MILLIMETERS NOMINAL THREAD PITCH IN MILLIMETERS: 1.25 PART NAME ASSIGNED BY CONTROLLING AGENCY: METRIC HEX HEAD BOLT SPECIAL FEATURES: C/O 8, BOLT(M8X1.25X20-MM), HEAD HEIGHT 6MM, HEAD WIDTH 13 MM, GRIP LENGTH 3MM MATERIAL: STEEL OVERALL PROPRIETARY CHARACTERISTICS: NPAC SURFACE TREATMENT: OIL OVERALL AND PHOSPHATE THREAD SERIES DESIGNATOR: UNC