12-11X3 1/2 Unslotted Indented Hex Washer Self Tapping Screw Type A Full Threaded Zinc (Pack Qty 600) BC-1256AW

A thread forming screw having a tapered point, and a sharp crested, coarse pitch thread. Wood screws are produced two ways: (1) cut thread screws have a tapered shank; (2) rolled thread screws have a constant shank diameter, then taper at the point Will produce a mating thread when assembled into wood or other resilient materials