Works in all masonry-based material including concrete, block or brick, 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, Climaseal blue coating is approved for ACQ treated lumber and delivers long-lasting corrosion protection, Patented thread form doubles installation speed and delivers 20% more holding power than wedge or sleeve anchors, 2 times faster to install than a wedge or sleeve anchor, Heavy-duty anchor design instills confidence by allowing for closer anchor spacing and closer to edge installation