M8-1.25 x 20mm DIN 965 Phillips Drive Flat Head Zinc Finish Steel Machine Screw / THREAD CLASS: 6G THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 20.0 MILLIMETERS NOMINAL FASTENER LENGTH: 20.0 MILLIMETERS NOMINAL HEAD STYLE: A40 FLAT COUNTERSUNK UNDERCUT HEAD DIAMETER: 14.5 MILLIMETERS NOMINAL HEAD HEIGHT: 4.0 MILLIMETERS NOMINAL INTERNAL DRIVE STYLE: B1 CROSS RECESS TYPE 1 END ITEM IDENTIFICATION: MRAP - UNIQUE NSN - USED ON 3 MRAP VARIANTS; MRAP - COUGAR ISS 1.5; MRAP - COUGAR ISS CAT1 A1 NOMINAL THREAD DIAMETER: 8.0 MILLIMETERS THREAD PITCH IN MILLIMETERS: 1.25 COUNTERSINK ANGLE: 90.0 DEGREES NOMINAL PART NAME ASSIGNED BY CONTROLLING AGENCY: SCREW, FLAT HEAD, M8 X 1.25 X 20 SCREW MATERIAL: STEEL SCREW SURFACE TREATMENT: ZINC SPECIAL FEATURES: NUMBER 4 DRIVE THREAD SERIES DESIGNATOR: M