hexagonal composite pad drill tail screw outer hexagonal white zinc drill tail screw colored steel tile dovetail wire self-threading pin self-drilling wire

This composite pad drill-tail screw is specially designed for the installation of color steel tiles, color steel plates, and metal roofs. It is a professional waterproof fastener. Its unique integrated composite pad (with built-in waterproof rubber pad) can form an effective seal after screw tightening, preventing water leakage and enhancing the waterproof durability of the installation surface. The drill-tail design does not require pre-drilling, allowing it to self-tap and drill, significantly improving construction efficiency; the hexagonal flange head or tail shape provides stronger torque bearing capacity, ensuring a more stable installation. The product supports flexible customization of dimensions, lengths, materials, and pad types to meet the requirements of different thicknesses of plates and outdoor environments. It is suitable for scenes such as steel structure factory buildings, roof maintenance, and fence installations, and is a reliable and efficient fastening solution in the field of metal construction.