Order this Tapcon Phillips Flat Head Tapcon Concrete Screws for delivery. Works in all masonry-based material including concrete, block or brick. Use these screws for hurricane protection and a variety of projects that need a white finish including shutters, door and window frames, screened enclosures and many other fixtures to masonry. Chisel edges accurately cut threads into concrete allowing for consistent driving performance and back holding power. White ultra shield finish delivers long life corrosion resistance. Advanced thread form reduces installation torque by 30%, allowing for use in a wider range of materials. Reputation for quality, strength and ease of installation from industry professionals. Made in the USA. Approved for use in ACQ treated lumber. Includes a free carbide-tipped Tapcon drill bit. To install, use a 3/16 in. carbide-tipped Tapcon drill bit to drill pilot hole. Learn more about concrete anchors here.