Bolt, Nut, Customized Fastener manufacturer / supplier in China, offering Carbon Steel Grade4.8 Grade8.8 M12 M16 Chemical Anchor Bolt with Resin Spin-in, Factory Price M8-M150 Grade 4.8-12.9 Carbon Steel Alloy Steel ASTM A194 Gr. 2h Heavy Steel Hex Nut with Custom Surface Treatment, Steel12.9 M27 and M3 M30 M32 Grade 8.8 Xylan PTFE M26 ASTM A193 B16 Stud Bolt with Two Nuts Threaded Rod and so on.