The Hillman GroupThe Hillman Group 35174 Hex Washer Head Self-Drilling Screw w/Neoprene Washer 12-14 x 2 20-Pack<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>They are used in wood， fiberglass and metal</li><li>Self-drilling or self-tapping metal screws increase productivity by reducing the number of steps required to screw together pieces of metal</li><li>Zinc-Plated</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31NhnPUKDYL.jpg" noproxy>