Cross recessed countersunk self-drilling screws are made of carbon steel or stainless steel. The countersunk head design allows the screws to be fully embedded into the workpiece surface, creating a smooth and seamless appearance, which is not only aesthetically pleasing but also eliminates the risk of scratching caused by protrusions. The cross recess is compatible with common screwdrivers and power tools, ensuring simple and effortless operation. The self-drilling tail structure can directly penetrate materials such as metal and wood without pre-drilling, significantly improving installation efficiency, especially suitable for concealed installation scenarios with high requirements for surface flatness.
The carbon steel type, treated with galvanizing or Dacromet, has high strength and cost-effectiveness, suitable for indoor and outdoor building decoration, general mechanical assembly, and other fields. The stainless steel type (such as 304, 316) has excellent corrosion resistance and can be used stably for a long time in humid, acidic and alkaline environments, often used in outdoor facilities, medical devices, kitchen and bathroom equipment, and other scenarios. The thread sizes range from ST2.9 to ST6.3, and the length ranges from 10mm to 50mm, suitable for the needs of different thickness plates. Widely used in furniture manufacturing, home appliance casing assembly, steel structure ceiling installation, automotive interior fixing, etc., they are produced in strict accordance with GB standards, and professional selection services are provided to ensure the safety and reliability of fastening connections.
