Half-round Head Self-tapping Screw

Half-round head self-tapping screws combine aesthetics with high performance. Their semi-circular head sits closer to the material than a pan head while providing greater pressure resistance than a countersunk head. These screws feature a smooth, rounded profile with strong tapping performance. Produced in strict accordance with ISO 7051, they have cold-rolled threads for full, high-engagement profiles. The specially ground tip reduces tapping resistance, allowing quick penetration into wood, plastic, and thin metal. Precise shank diameter tolerances ensure post-installation stability, making half-round head self-tapping screws ideal where both appearance and holding strength are important.

Half-round head self-tapping screws are widely used in wooden furniture, door and window hardware, fitness equipment, children's toys, and decorative hardware. In furniture, they securely attach table legs to tops, with the rounded head preventing scratches and bumps. For doors and windows, they fasten frames to hardware fittings, ensuring a tight seal and neat appearance. Their safe and reliable fastening makes them suitable for children's toys. In decorative projects, they are ideal for mounting brackets and ornaments, enhancing visual appeal. These screws are an excellent choice for applications where safety and aesthetics are equally important.

Made from carbon steel 1020A or stainless steel 304, these screws are designed for durability. Carbon steel versions undergo tempered heat treatment to achieve a Brinell hardness of HB 180–220. Surface treatments include zinc plating (ASTM B633) or copper plating (ASTM B766), providing up to 48 hours of salt spray resistance. Stainless steel 304 offers excellent corrosion resistance in damp environments. All products pass SGS testing and are ISO 9001 certified, with 6g thread precision and head-to-shank concentricity errors ≤0.02mm for reliable assembly. Custom options are available, including fine-thread screws, extended lengths (50–80mm), and special finishes such as nickel plating or electrophoretic coating. Clearly labeled packs of 500 pieces allow for easy identification and handling, streamlining the assembly process.