Manufacturer Part Number: 30774|Washer Type|Duty Type|Screw Size|5/8 inMaterial|Silicon BronzeThread Size|Inside Diameter (mm)|Inside Diameter (Decimal Inch)|0.6280Outside Diameter (mm)|Outside Diameter (Decimal Inch - 4 Decimals)|1.0720Thickness (mm)|Thickness (Decimal Inch - 4 Decimals)|0.1560Hardness|Material Grade|Military Specification|Does Not Meet Military SpecificationsStandards|Minimum Inside Diameter (Decimal Inch)|0.6350Minimum Inside Diameter (mm)|0.63Maximum Inside Diameter (mm)|Minimum Outside Diameter (Decimal Inch)|1.0790Minimum Outside Diameter (mm)|1.07Maximum Outside Diameter (mm)|1.09Maximum Outside Diameter (Decimal Inch)|1.0930Maximum Thickness (Decimal Inch)|Maximum Thickness (mm)|Fastener Standard|ASME B18.21.1Maximum Inside Diameter (Inch)|0.6500System Of Measurement|InchFinish Coating|Additional Information|UNSPSC Code|