Pro-Twist Construction Fasteners are engineered for professional-grade use in commercial, industrial and residential applications. Whether the job involves drywall, steel framing, mobile home construction, electrical or plumbing work, plastering or metal roofing, Pro-Twist has the optimal fastener for every situation. The Grip-Rite Pro-Twist No. 8 Sizes X 3/4 in. L Hex Hex Washer Head Sheet Metal Screws are made with a hex washer head and are designed for use in sheet metal. These screws are made of high quality steel for durability and have a zinc plating for corrosion resistance. These screws are ideal for use in a variety of applications and are available in a variety of sizes to meet your needs.