Hexagon head self-drilling screws with epdm bonded washer zinc plated

Self-drilling screws for steel structure in the fixing of color steel tile, can also be used for simple building in the fixing of thin plate. we use carbon steel C1022 production, the production of self-drilling screws with high strength, fast drilling speed, reusable, excellent corrosion resistance, long service life. The factory has a complete assembly line, through the cold block machine, clamping machine, rubbing machine, mesh belt furnace, electroplating and other processes, the production of high quality self-drilling screws. Test reports are available. Accept product customization, LOGO customization, packaging customization. Welcome enquiry