M12-1.75 x 20mm DIN 7991 Hex Drive Class 10.9 Zinc Finish Alloy Steel Flat Socket Cap Screw / THREAD DIRECTION: RIGHT-HAND THREAD LENGTH: 20.0 MILLIMETERS NOMINAL FASTENER LENGTH: 20.0 MILLIMETERS NOMINAL HEAD STYLE: C50 FLAT COUNTERSUNK INTERNAL DRIVE STYLE: D5 HEXAGON END ITEM IDENTIFICATION: MRAP; M-ATV NOMINAL THREAD DIAMETER: 12.0 MILLIMETERS WIDTH ACROSS FLATS: 8.0 MILLIMETERS NOMINAL THREAD PITCH IN MILLIMETERS: 1.75 MATERIAL: STEEL PROPERTY CLASS 10.9 OVERALL MATERIAL DOCUMENT AND CLASSIFICATION: ISO 898-1 ASSN STD SINGLE MATERIAL RESPONSE OVERALL PROPRIETARY CHARACTERISTICS: NPAC SURFACE TREATMENT: ZINC OVERALL THREAD SERIES DESIGNATOR: M