18C125ATF,concrete screw, self-tapping concrete screw, concrete screws, con-sert screw, consert screw, confast screw, ruff-nex, kwik-con, tapper, titan, masonry screw, blue screw, cement screw, stainless steel concrete screw;concrete screw, self-tapping concrete screw, concrete screws, con-sert screw, consert screw, confast screw, ruff-nex, kwik-con, tapper, titan, masonry screw, blue screw, cement screw, stainless steel concrete screw,3/16 X 1 1/4 FLAT HD PH TAPCON ANCHOR SC,Jugenheimer Industrial Supplies, Inc.