high strength black phosphating dry wall nail countersunk head self-tapping screw drywall screw flat head cross self-tapping screw

This high-strength black phosphated drywall nail is specially designed for the stable installation of gypsum boards, lightweight wall panels, and wood structures. Its surface is treated with professional phosphating, combined with a hard black coating, which offers excellent corrosion resistance and wear resistance, and brings a delicate matte texture. The sunken head and flat cross slot design make it easy to apply force and to screw in, ensuring a flush finish that is both aesthetically pleasing and tidy. The self-tapping thread is sharp and cuts smoothly, enabling fast and firm fixing. This product supports flexible customization in size, length, and material, meeting the specific requirements of specifications and strength for different construction scenarios. It is suitable for interior decoration, partition ceiling, and furniture assembly projects, providing reliable and durable connection effects. Direct factory supply, quality assurance, making it a practical choice for your engineering projects.