Phillips Pan Head Machine Screw

Machine screws featuring a standard Phillips drive and cylindrical pan head, commonly used for fastening electronic device housings, appliance panels, and lightweight mechanical structures. The flat bearing surface under the head provides stable axial clamping force and prevents loosening when threaded into pre-tapped holes or nuts, making them ideal for assemblies with limited vertical space.

The manufacturing process primarily involves cold heading to form the head, followed by thread rolling on precision machines to create accurate external threads. Final surface treatments are applied to enhance corrosion resistance. Key quality controls focus on pitch diameter tolerance, thread profile integrity, and head concentricity, ensuring smooth insertion during automated assembly without stripping or misalignment.

Our factory is equipped with multi-station cold headers and high-speed automatic thread rollers, enabling efficient production of both standard and custom fasteners. Heat treatment processes are utilized to regulate material hardness for various strength grades. Rigorous quality control is maintained using salt spray testers and optical sorting machines to monitor corrosion resistance and detect visual defects. We support customization of materials (such as carbon steel and stainless steel) and surface finishes (such as zinc or nickel plating) based on customer drawings.