HILLMAN Screw-Bolt+ 1/2 in. D X 4 in. L Steel Hex Head Concrete Screw Anchor 10 pk

Screw-Bolt+ anchors are a one-piece, heavy-duty screw anchor with a finished hex head. The patented thread design offers toughened threads for tapping high strength concrete. They are simple to install, easy to identify and are fully removable. Screw-Bolt+ anchors are ICC code approved products and have versatility in different types of concrete & masonry. These anchors are ideal for use in concrete construction, structural applications, racking, fences & railings, drywall, glazing and temporary applications such as scaffolding.