Pan Quadrex Screw/Screw/Self-Tapping Screw/Sheet Metal Screw/Stainless Steel Tapping Screws/Tapping Screws/Apping Screw/Furniture Screw Name: Pan quardrex screw Material: Steel, stainless steel, alloy steel etc. Size: #6x1/2''---2''; #8x1/2''---2-1/2''; #10x1/2''---3'' Size: #12x1/2''---3-1/2'' or according to customer's drawings Finish: Zinc bonus cobalt nickel alloy plating and Magni599 plating Salt spray: 800hr; 1000hr; 1200hr; 2000hr etc.