The Hillman Group 230057 Hex Lag Screw， 5/16-Inch X 3-Inch， Zinc， 100-Pack<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>The length of a lag screw is measured from the under head bearing surface to the tip of the screw</li><li>Hex head is easily driven with simple wrenches and requires minimal clearance above the fastener</li><li>Zinc Plated</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31DKyWmL0oL.jpg" noproxy>