<p>Flat Washer, Steel, Inch, Washer Material Grade Case Hardened, Fastener Finish Plain, Fits Bolt Sizes #4, Washer Inside Dia. 1/8 In., Washer Outside Dia. 5/16 In., Thickness 0.078 In., Washer Standards ASME B18.22.1, Package Quantity 100</p> <p><br /><b>Features</b></p> <ul> <li>Item: Flat Washer</li> <li>Fits Bolt Sizes: #4</li> <li>Thickness: 0.078&quot;</li> <li>System of Measurement: Inch</li> <li>Fastener Finish: Plain</li> <li>Flat Washer Type: Thick Flat Washer</li> <li>Washer Inside Dia.: 1/8&quot;</li> <li>Washer Material Grade: Case Hardened</li> <li>Washer Outside Dia.: 5/16&quot;</li> <li>Washer Basic Material: Steel</li> <li>Washer Standards: ASME B18.22.1</li> </ul> <p></p>