Bolt, Nut, Thread Rod manufacturer / supplier in China, offering Erosion-Resisting OEM Special Material DIN 976 ASME B18.31.2 Inconel 718 Alloy Steel N07718 M4-M90 Fully Threaded Rods with Nuts, OEM ODM Duplex Stainless Steel DIN 976 ASME B18.31.2 S32760 F55 F50 F60 M4-M90 4#-4'' Fully Threaded Rods with Nuts High Quality, SAE J429 Grade 8 High Tensile Zinc Plated Hex Bolt 1/4" 1/2" 3/4" 7/8" Unc Unf Hex Bolt Length 20mm-200mm for Heavy Construction and so on.