Manufacturer Part Number: KP80405|Washer Type|USSMaterial|Carbon SteelMaterial Grade|9Screw Size|9/16 inThread Size|Inside Diameter (Inch)|19/32Inside Diameter (Decimal Inch)|0.5880Inside Diameter (mm)|Outside Diameter (mm)|Outside Diameter (Inch)|Outside Diameter (Decimal Inch - 4 Decimals)|1.5000Thickness (mm)|Thickness (Inch)|1/8Thickness (Decimal Inch - 4 Decimals)|0.1250Standards|Finish Coating|Clear Zinc ChromateFastener Standard|ASTM F436Military Specification|System Of Measurement|InchAdditional Information|Product Service Code|UNSPSC Code|31161807