Hillman 47223 Screw, 1/4-14 Thread, 3/4 in L, Coarse Thread, Washer Head, Hex Drive, Self-Drilling Point, Steel, 79 PK
Promo Price:
This self-drilling screw is used in wood, fiberglass, 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.