HILLMAN Screw-Bolt+ 3/8 in. D X 4 in. L Steel Hex Head Concrete Screw Anchor 15 pk

Screw-Bolt+ anchors are a one-piece, heavy duty screw anchor with a finished hex head. 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.