The new Tapper+ Xtreme concrete screw is fully threaded in lengths up to 3-1/4″ for light gauge metal attachment to CMU. Available in a choice of head styles including hex flange head, trim hex head, flat and trim flat. Tapper+ Xtreme has been tested to meet ICC-ES Standards for uncracked concrete. Get your hands on these great concrete fasteners now at TannerBolt.com
https://www.tannerbolt.com/products/ANCHORS/MECHANICAL-ANCHORS/MECHANICAL-SCREW-ANCHORS/TAPPER-SCREW-ANCHORS/SCREW-ANCHORS-TAPPER-PLUS-EXTREME.aspx