This Phillips pan head sheet metal screw is made of 18-8 stainless steel in a #6 x 1/2 in. size and is packed 100 per box. It is designed to join metal objects and can also attach metal to wood, fiberglass and plastic. Sharp threads draw materials together and ensure a secure hold, and the self-tapping type AB design makes it easy to tap into and tighten against the material. The stainless steel finish combines a polished look with protection against rust and corrosion. For installation, drill a hole in the material that matches the diameter of the screw.