Coolnut 20PCS 3/8" (10mm) x 3" Zinc-Plated Concrete Screw Anchors for Brick & Block — Hex, Washers & Hex Nuts Included

Complete installation kit containing 20 Coolnut concrete screw bolts, size 3/8" (10mm) x 3", with zinc plating for corrosion resistance. Pack includes 20 washers, hex nuts and a hex driver so you can start work without buying extra parts. Made from dual-hardened carbon steel and tested for static, wind and seismic loads to provide dependable holding strength in masonry. The low-expansion design minimizes outward pressure, allowing secure fixing close to edges of brick or concrete block. Quick to install for faster project completion. 24/7 customer support and free refunds are available for any quality issues.