Hillman
These self-drilling screws are used in wood, fiberglass and metal, and they possess a drill point enabling it to drill in 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 necessary.
Monster Fastener Zinc Plated Steel Hex Bonded Washer Head Self-Drilling Screws
Monster Fastener Zinc Plated Steel Phillips Modified Truss Head Sharp Point
Monster Fastener Zinc Plated Steel Modified Phillips Truss Head Self-Drilling Screws
Blue Point .27 Caliber Long Strip Loads
Monster Fastener Zinc Plated Steel Hex Washer Head Self-Drilling Screws