Metal Galvanized Hexagonal Hex Head Self-Tapping Screw Roofing Screw Tek Tapping Screw with Rubber Washer

Metal Galvanized Hexagonal Hex Head Self-Tapping Screw Roofing Screw Tek Tapping Screw with Rubber Washer. High-Strength Carbon Steel: Made of C1022A carbon steel grade 8.8 for enhanced durability and strength. Versatile Drill Points: Available with 2# to 5# drill points, spoon, sword, or sharp tapping points for various materials. Superior Surface Treatment: Options include Blue-white zinc, Ruspert, Dacromet, and painting for excellent anti-corrosion. Customizable Sizes: Diameters from 4.8mm to 6.3mm and lengths from 13mm to 300mm or as requested. Multiple Washer Options: Available with PVC, Steel EPDM bonded, umbrella type, or rubber washers for water tightness. Hex Head Design: Six flat surfaces provide larger contact area, preventing slippage under high torque. Custom Surface Treatment: Phosphate, Galvanized, Nickel, Brass, Copper plating, Ruspert, and Dacromet treatments available. Customizable Packing: Flexible packing options including bales, individual boxes, or custom requests.