Use these screws for a variety of projects including attaching machinery/heavy equipment, industrial shelving, ledger board, pipes, cables and many other fixtures to masonry. Works in all masonry-based material including concrete, block, or brick. Heavy-duty anchor design instills confidence by allowing for closer anchor spacing and closer to edge installation. Climaseal blue coating delivers long-lasting corrosion protection. Patented thread form doubles installation speed and delivers 20% more holding power than wedge or sleeve anchors.