Manufacturer Part Number: Z9274|Washer Type|StructuralMaterial|Alloy SteelMaterial Grade|Screw Size|1/2 inThread Size|Inside Diameter (Inch)|17/32Inside Diameter (Decimal Inch)|0.5313Inside Diameter (mm)|Outside Diameter (mm)|Outside Diameter (Inch)|1-1/16Outside Diameter (Decimal Inch - 4 Decimals)|1.0625Thickness (mm)|Thickness (Inch)|13/64Thickness (Decimal Inch - 4 Decimals)|0.2031Standards|Finish Coating|Yellow Zinc DichromateFastener Standard|Military Specification|System Of Measurement|InchAdditional Information|Product Service Code|UNSPSC Code|