Manufacturer Part Number: 512222MSC|Washer Type|Duty Type|Screw Size|2-1/2 inMaterial|Spring SteelThread Size|Inside Diameter (mm)|Inside Diameter (Decimal Inch)|Outside Diameter (mm)|Outside Diameter (Decimal Inch - 4 Decimals)|Thickness (mm)|Thickness (Decimal Inch - 4 Decimals)|0.4960Hardness|Material Grade|8Military Specification|Does Not Meet Military SpecificationsStandards|Minimum Inside Diameter (Decimal Inch)|2.5120Minimum Inside Diameter (mm)|2.51Maximum Inside Diameter (mm)|Minimum Outside Diameter (Decimal Inch)|Minimum Outside Diameter (mm)|Maximum Outside Diameter (mm)|3.64Maximum Outside Diameter (Decimal Inch)|3.6480Maximum Thickness (Decimal Inch)|Maximum Thickness (mm)|Fastener Standard|Maximum Inside Diameter (Inch)|2.5430System Of Measurement|InchFinish Coating|UncoatedAdditional Information|UNSPSC Code|