Screw Masonry Hex 1/4X2-3/4 Fast installation. Replaces small diameter expansion anchors, plugs and screws in light to medium duty applications. No need to pre-spot hole. No inserts are required. Reversible and removable. Can be installed close to an edge. Thread design results in i ncreased pullout values and lower installation torque. 'Climaseal' coating provides extra corrosion resistance. Applications: Electrical junction boxes, conduit clips, HVAC strapping, 2 x 4 lumber, wood headers, furring strips, hurricane shutters,window f rames, jambs and sills, door frames to masonry, plywood backer boards to masonry, exterior insulation to masonry.