M5 M10 Double-Ended Thread Self-Tapping Screws with Zinc Finish Bolts for Furniture Sofa Staircase

This versatile fastener features fully threaded ends with a smooth unthreaded shank in between, designed for securely joining two internally threaded components without extra bolts or nuts. Crafted from zinc-plated carbon steel or stainless steel for excellent corrosion resistance, it complies with standards like DIN 938 and ASTM. Ideal for machinery assembly, construction frameworks, pipeline installations and HVAC systems, it ensures stable, vibration-resistant connections and simplifies disassembly for maintenance.