M6 - 1.81 x 20 Yellow Zinc Hex Washer Phillips Sheet Metal Screw / THREAD DIRECTION: RIGHT-HAND FASTENER LENGTH: 16.0 MILLIMETERS NOMINAL HEAD STYLE: C7 HEXAGON EXTENDED WASHER WIDTH BETWEEN FLATS: 10.0 MILLIMETERS NOMINAL EXTENDED WASHER DIAMETER: 12.0 MILLIMETERS NOMINAL INTERNAL DRIVE STYLE: D1 CROSS RECESS TYPE 1 END ITEM IDENTIFICATION: END ITEM NSN: 2320-01-529-2251; BUFFALO HEAVY MINE PROTECTED CLEARANCE VEHICLE; MRAP BUFFALO MK2A2 NOMINAL THREAD DIAMETER: 6.0 MILLIMETERS PART NAME ASSIGNED BY CONTROLLING AGENCY: LICENSE PLATE SCREW M6X16MM COLOR: GOLD OVERALL MATERIAL: STEEL OVERALL SURFACE TREATMENT: ZINC OVERALL AND DICHROMATE THREAD SERIES DESIGNATOR: M