These 1 1/2" Self Piercing Sheeter Screws are engineered to fasten thin pieces of metal to wood, fiberglass or metal primarily through a pre-drilled, or generated hole in light gauge metal. The featured neoprene washer provides a water-tight seal, and prevents corrosion between surfaces.

Features

• Self piercing screws penetrate metal and tap their own mating threads
• Steel Backed Neoprene Washer for water proofing
• Gray hue to match metal sheeting
• Ceramic coat provides superior rust and corrosion protection
• No need to pre-drill a hole in thin metal
• 1 1lb box per sellable unit