STANDARD CONCRETE BRASS ANCHOR Our standard screw type solid brass anchor for concrete surface 02 SINGLE KNURLING CONCRETE BRASS ANCHOR Single knurling screw type solid brass anchor for concrete surface 03 DOUBLE KNURLING CONCRETE BRASS ANCHOR Double knurling screw type solid brass anchor for concrete surface 04 SINGLE TWIST POPUP CONCRETE BRASS ANCHOR Spring loaded single twist popup solid brass anchor for concrete surface 05 WOOD DECK BRASS ANCHOR Screw type solid brass anchor for wooden or composite deck