M10-1.5 x 20mm DIN 6921S Plain Finish Class 90 Steel Hex Serrated Flange Bolt / THREAD LENGTH: 20.0 MILLIMETERS NOMINAL FASTENER LENGTH: 20.0 MILLIMETERS NOMINAL HEAD DIAMETER: 22.0 MILLIMETERS NOMINAL WIDTH BETWEEN FLATS: 15.0 MILLIMETERS NOMINAL END ITEM IDENTIFICATION: 2320-01-552-4677 MRAP; MASSPRO DASH ISS W/CROWS AND W/OGPK NOMINAL THREAD DIAMETER: 10.0 MILLIMETERS PART NAME ASSIGNED BY CONTROLLING AGENCY: BOLT,HEX FLG HD METRIC M10 X 2 SPECIAL FEATURES: HEAD STYLE: CHAMFERED PLANGE; FLANGE OVERALL DIAMETER: 22.0MM COLOR: BLACK OVERALL MATERIAL: STEEL OVERALL PROPRIETARY CHARACTERISTICS: NPAC SURFACE TREATMENT: PHOSPHATE OVERALL THREAD SERIES DESIGNATOR: M