DEWALT Screw-Bolt+ Flat Head, 1/4" x 3" (Box of 100)

The Screwbolt Screw 1/4IN X 3IN (FLAT) is a self-tapping concrete screw anchor that threads directly into a pre-drilled hole in concrete or block, with no separate anchor body or expansion clip required. Made from zinc-plated carbon steel, it installs fast and can be removed if needed, making it a favorite for contractors hanging conduit, shelving, and fixtures, and simple enough for a first-time DIYer with a hammer drill.