Stainless Steel Phillips Countersunk Head Self-Drilling Screw

This Phillips countersunk head self-drilling screw is a high-performance fastener integrating "drilling + tapping + fixing". Made of stainless steel, it features a tapered countersunk head and a specialized self-drilling tail (pointed tail) with self-tapping threads on the shank. Eliminating the need for pre-drilling, it can directly penetrate sheet metal, steel plates, color steel plates and other substrates to cut internal threads. After installation, the head sinks into the workpiece surface, significantly improving installation efficiency and connection reliability. It is widely used in steel structure workshops, color steel tile installation, sheet metal processing, guardrails, door and window frames and other scenarios.

• Integrated Self-Drilling Design, No Pre-Drilling Required: The pointed self-drilling tail can directly penetrate thin metal plates, completing drilling and tapping in one step without extra drilling processes, and the installation efficiency is increased several times.
• Countersunk Structure, Flat Surface: The tapered countersunk head fits the 90° mounting surface and sinks completely into the substrate after screwing in, with no protrusion, suitable for scenarios requiring high surface flatness.
• Phillips Drive, Anti-Slip: The Phillips slot drive structure exerts uniform force and cooperates with high-hardness bits to effectively prevent slipping, enabling quick and accurate installation.
• Strong Engagement, High Tensile Strength: The threads engage tightly, and the self-drilling tail mechanically locks with the substrate after penetration, featuring strong pull-out resistance and torque resistance, with firm connection and not easy to loosen.

We offer comprehensive customization services to meet specific customer requirements, including different sizes, materials, and precision levels. Our professional technical team oversees the entire customization process to ensure the final product meets your exact specifications and performance expectations.