<p>Wave Washer, 18-8 Stainless Steel, Finish Passivated, Fits Bolt Sizes 5/16 In., Inside Dia. 0.322 In., Outside Dia. 0.612 In., Thickness 0.013 In., Number of Waves 1, Overall Height 0.077 In., Rockwell Hardness C40 to C50, Package Quantity 10</p> <p><br /><b>Features</b></p> <ul> <li>Finish: Passivated</li> <li>Inside Dia.: 0.322&quot;</li> <li>Item: Wave Washer</li> <li>Material: 18-8 Stainless Steel</li> <li>Outside Dia.: 0.612&quot;</li> <li>Fits Bolt Sizes: 5/16&quot;</li> <li>Overall Height: 0.077&quot;</li> <li>Thickness: 0.013&quot;</li> <li>Rockwell Hardness: C40 to C50</li> <li>Number of Waves: 1</li> </ul> <p></p>