This 50-piece Sheet Metal Screw Assortment Value Kit from Bulldog Hardware provides screws in a variety of sizes to accommodate wide ranging applications such as to attach metal wood fiberglass and plastic. Ideal for HVAC gutters register vents steel stud framing roofing projects and more. The sharp threads draw the material together for a secure hold. The sharp tip drives quick easy alignment and threading. The zinc plated steel construction provides corrosion resistance and durability. Bulldog Hardware sheet metal screws are available in a variety of sizes and head styles to meet your specific application needs.