Symmetry Self-Drilling Screw, #10 x 3/4" Hex Head: * Self-drilling screws * Hex head * 6 pieces * Size: #10 x 3/4" * Provides fast and sturdy fastening * Use for joining sheet metal, hard plastics, plywood and other rigid metals * Drills their own pilot holes and cuts their own thread pattern * No pre-drilling required * Model# 4-6021