HILLMAN No. 6 Ga. X 1/2 in. L Hex Hex Washer Head Self-Drilling Screws 100 pk

This self-drilling screw is used in wood, fiberglass, and metal, and it possess a drill point enabling it to drill its own hole in thin gauge steel. The sharp threads create their own mating thread when drilled into the material. No pre-drilled pilot holes are necessary.Fully threaded with a sharp point and threads,Coarse threads and self-drilling point eliminate need for a pilot hole,Hex drive for simple installation,Zinc-plated for moderate corrosion resistance,Case-hardened steel construction