Manufacturer Part Number: Z9158-5|Washer Type|Extra ThickMaterial|Stainless SteelMaterial Grade|18-8Screw Size|8Thread Size|Inside Diameter (Inch)|11/64Inside Diameter (Decimal Inch)|0.1719Inside Diameter (mm)|Outside Diameter (mm)|Outside Diameter (Inch)|3/8Outside Diameter (Decimal Inch - 4 Decimals)|0.3750Thickness (mm)|Thickness (Inch)|1/16Thickness (Decimal Inch - 4 Decimals)|0.0625Standards|Finish Coating|PlainFastener Standard|Military Specification|System Of Measurement|InchAdditional Information|Product Service Code|UNSPSC Code|31161807