Bolt, Nut, Customized Fastener manufacturer / supplier in China, offering Stainless Steel 304 316 A2 A4 M2 M3 M4 M5 M6 M8 M10 M12 DIN 933 DIN931 Hexagon Cap Screw, ISO13918 Ceramic Ring Nelson Shear Studs 19 Carbon Steel Welding Stud, M42 High Tensile F1554 Gr55 Carbon Steel B7 Stud Bolt and Nuts Hot Dipped Galvanized Thread Rod Stud Bolts and Nuts and so on.