DeWALT 3/8" x 4" Screw-Bolt+ Screw Anchors, Hex Head, Zinc Plated General Purpose An undersized square drive bit

An undersized square drive bit has a slightly more precise or tighter profile than a standard #3 square bit

with an automatic stop feature for precise

and the clip is carbon steel per ASTM A 568

interior environments and full compatibility with Simpson Strong-Tie Quik Drive auto-feed systems

making it appropriate for use in such structural applications

DeWALT 3/8" x 4" Screw-Bolt+ Screw Anchors, Hex Head, Zinc Plated General Purpose An undersized square drive bitPowers Fasteners PFM1411280 3 8" x 4" High Performance Concrete Anchor Screw The Screw Bolt+ High Performance Screw Anchor is a one piece, heavy duty screw anchor with a finished hex head or flat head (countersunk). Suitable base materials include normal weight concrete, sand lightweight concrete, concrete over steel deck, concrete masonry and solid clay brick. It is simple to install, easy to identify and fully removable. The patented thread design,