Bolts, Nuts, Washers manufacturer / supplier in China, offering DIN 472 Hardware Fasteners Retaining Rings Metal Stainless Steel Carbon Steel 65mn Black, in Stock Stainless Steel Hexagon Metal Self-Locking Nuts M4-M24 DIN 980 Lock Nuts for Machinery & Automotive, M8 M10 Grade 8 Carbon Steel Zinc Plated Nylon Insert Lock Nut Standard DIN985 Nylock Lock Nuts and so on.