Hex wood screw|Shen attack, the first since the hexagonal wood screws Hex wood screw Features: 1) Standard: DIN, ANSI, BS, GB 2) Material: carbon steel 3) Diameter: 6mm ～ 12mm, 1/4" ～ 7/16" 4) LENGTH: 20mm～ 300mm, 3/4" ～12" 5) Thread: MM, UNC, UNF, BSW 6) Grade: 4.8, 5.8, 6.8, 8.8,9.8,10.9,12.9 7) Finish: plain, zinc, black, nickel, chrome, H.D.G. Packing: carton, box, bag, pallet