Screw, Bolts, Nuts manufacturer / supplier in China, offering High-Strength DIN 934 Hex Nut - Grade 10.9/12.9 Carbon Steel, M8-M30 for Heavy Machinery/Automotive Zinc Plated, Anti-Corrosion, Half Thread Stud Bolt - ISO 13918 M6-M12 Stainless Steel/Carbon Steel Precision Thread Rod for Mechanical/Automotive Applications (Shear Stud/Welding Fittings, DIN931- Grade 8.8/12.9/10.9/Stainless Steel/Carbon Steel Fastener Structural Bolt for Heavy-Duty Connections and so on.