Swdh Timber Hex Screw 3" 50/Pk

Simpson SDWH Exterior Double Barrier 5/16-Inch Hex Head Structural Wood Screws are designed with a shorter thread length to fasten multi-ply members such as trusses engineered lumber products and solid-sawn lumber. Large washer head provides maximum bearing area and deep 6-lobe recess reduces cam-out. Requires 5/16-Inch hex driver. Optimal screw lengths provide maximum penetration while preventing the point from protruding out the back member.