... ,C1018,Stainless Steel 2.Surface treatment: zinc plated, Cr3+C Type 17 Chipboard Screw Product Feature:1. Standard: GB, DIN,ANSI ... head, slotted truss head6. Drive: Phillips, pozi, slotted, hexagon, torx, square and so onAdvantage:1. Good hardness2. High and low temperature ... different market’s need: America, Europe, Asia, and so on. Type 17 Chipboard Screw