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. Looking for a reliable and durable screw for your next project? Look no further than Grip-Rite Pro-Twist No. 8 Sizes X 3/4 in. L Hex Hex Washer Head Sheet Metal Screws. These screws feature a hex head for easy driving and a washer head for a tight seal. Made of high-quality materials, these screws are built to last. So, whether you're working on a new roof or building a deck, grip-rite screws are the perfect choice.