Dewalt Wall Dog Pan Head Screw Anchor is made of steel, features expansion free, one piece, threaded fastener. No plug needed and no pre-drilling required in wood and plasterboard. It is suitable for light to medium duty applications including curtain tracks, electrical sockets and switches, trunking, back boxes and conduit, installing fire clips. It is use to fasten fixtures directly to plasterboard, wood, concrete, sand-lime stone or brickwork. It is approved by D-Line for use with the Safe-D Clip system.