<p>Hex Head Lag Screw, Low Carbon Steel, Finish Zinc Plated, Grade 1, Size 5/16 In., Length 1 In., Screw Size 5/16 In., Hex Size 1/2 In., Meets/Exceeds ASME B18.2.1, Package Quantity 100</p> <p><br /><b>Features</b></p> <ul> <li>Finish: zinc plated</li> <li>Item: Hex Head Lag Screw</li> <li>Length: 1&quot;</li> <li>Material: Low carbon steel</li> <li>Size: 5/16&quot;</li> <li>Grade: 2</li> <li>Hex Size: 1/2&quot;</li> <li>Screw Size: 5/16&quot;</li> <li>Thread Style: Partially Threaded</li> <li>Meets/Exceeds: ASME B18.2.1</li> <li>System of Measurement: Inch</li> </ul> <p></p>