M12-1.75 x 20mm ISO 7380 Hex Drive Class 10.9 Zinc Finish Alloy Steel Button Socket Cap Screw / THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 20.0 MILLIMETERS NOMINAL HEAD STYLE: C35 UNDERCUT PAN NO. 2 HEAD DIAMETER: 20.48 MILLIMETERS MINIMUM AND 21.00 MILLIMETERS MAXIMUM INTERNAL DRIVE STYLE: D5 HEXAGON END ITEM IDENTIFICATION: MRAP - COUGAR CAT2 A1 NOMINAL THREAD DIAMETER: 12.0 MILLIMETERS WIDTH ACROSS FLATS: 8.0 MILLIMETERS NOMINAL THREAD PITCH IN MILLIMETERS: 1.75 PART NAME ASSIGNED BY CONTROLLING AGENCY: SCREW, BHCS METRIC CL 10.9 ZN SPECIAL FEATURES: FILLET RADIUS: 0.60 MATERIAL: STEEL OVERALL PROPRIETARY CHARACTERISTICS: NPAC SURFACE TREATMENT: ZINC OVERALL THREAD SERIES DESIGNATOR: M