Bolt, Nut, Customized Fastener manufacturer / supplier in China, offering Nace Hex Nut A194 2h Hex Nut ISO4032 DIN934 H2s Scc Heavy Duty Black Oxide Hex Nut, DIN916 GB80 Stainless Steel Cup Point 5/8*5/8 DIN916 DIN913DIN914 304 316 Black Carbon Steel Set Screw, DIN912 Black Oxide Carbon Steel Dacromet Zinc 10.9 Round Head Metric Size Hot DIP Galvanized Dacromet Grade8.8 DIN7984 A193 B7 Hex Socket Head Bolt Allen Bolt and so on.