Screws for Mounting Signage and Fixtures-Hillman No. 8 x 1/2 in. L Hex Hex Washer Head Zinc-Plated Steel Sheet Metal Screws 5 pk (Pack of 10)
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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. *