Manufacturer Part Number: 42621G|Washer Type|StandardMaterial|Case Hardened SteelMaterial Grade|1010Screw Size|3/8Thread Size|Inside Diameter (Inch)|13/32Inside Diameter (Decimal Inch)|Inside Diameter (mm)|Outside Diameter (mm)|Outside Diameter (Inch)|7/8Outside Diameter (Decimal Inch - 4 Decimals)|Thickness (mm)|Thickness (Inch)|3/16Thickness (Decimal Inch - 4 Decimals)|Standards|Finish Coating|Black OxideFastener Standard|Military Specification|System Of Measurement|InchAdditional Information|Product Service Code|UNSPSC Code|