Manufacturer Part Number: 30772|Washer Type|Duty Type|Screw Size|3/8 inMaterial|Silicon BronzeThread Size|Inside Diameter (mm)|Inside Diameter (Decimal Inch)|0.3770Outside Diameter (mm)|Outside Diameter (Decimal Inch - 4 Decimals)|0.6800Thickness (mm)|Thickness (Decimal Inch - 4 Decimals)|0.0940Hardness|Material Grade|Military Specification|Does Not Meet Military SpecificationsStandards|Minimum Inside Diameter (Decimal Inch)|0.3800Minimum Inside Diameter (mm)|0.38Maximum Inside Diameter (mm)|Minimum Outside Diameter (Decimal Inch)|0.6830Minimum Outside Diameter (mm)|0.68Maximum Outside Diameter (mm)|0.69Maximum Outside Diameter (Decimal Inch)|0.6910Maximum Thickness (Decimal Inch)|Maximum Thickness (mm)|Fastener Standard|ASME B18.21.1Maximum Inside Diameter (Inch)|0.3900System Of Measurement|InchFinish Coating|Additional Information|UNSPSC Code|