<p>Lock Washer, Countersunk External Tooth, Steel, Zinc Plated Finish, Fits Bolt Sizes 1/4 In, Inside Dia 0.267 In, Outside Dia 0.478 In, Thickness 0.025 In, Rockwell Hardness C50, Application For 82 Deg Countersunk Screws, For Use With Flat and Oval Head Screws, Meets/Exceeds ASME B18.21.1, Package 100</p> <p><br /><b>Features</b></p> <ul> <li>Application: For 82 Degrees Countersunk Screws</li> <li>Finish: zinc</li> <li>Inside Dia.: 0.267&quot;</li> <li>Item: Lock Washer</li> <li>Material: steel</li> <li>Outside Dia.: 0.478&quot;</li> <li>Type: Countersunk External Tooth</li> <li>Fits Bolt Sizes: 1/4&quot;</li> <li>Thickness: 0.025&quot;</li> <li>Meets/Exceeds: ASME B18.21.1</li> <li>Rockwell Hardness: C50</li> </ul> <p></p>