Qatar Steel Industries Factory is providing 11 different type of self drilling screws, nuts and bolts. We supply Pan Head, Countersunk Head, Countersunkk Wings, Double Thread, Farmer Scews, Hex Washer Head, Hex Washer Head Light Duty, Hex Washer Head Medium Duty, Truss Phillips and Wafer Phillips. We assure the best quality, fast delivery and specialist support. Our nuts and bolts are stronger than bi-metal scews or alloy steel screw without breaking during usage. Extreme corrosion resistance and meets WEEE and ROHS directive from European Union and ELF (End of Life Vehicle) directive for eliminating hazardous chemicals.