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. Grip-Rite Pro-Twist No. 7 Sizes X 7/16 in. L Phillips Pan Head Sheet Metal Screws 1 lb 367 pk are the ideal choice for your next home improvement or DIY project. With a wide variety of sizes and lengths, these screws are perfect for a variety of applications. The Phillips pan head provides a clean, finished look and the Grip-Rite Pro-Twist ensures a secure grip.