Bolt, Nut, Thread Rod manufacturer / supplier in China, offering Corrosion Resistant 1/2" Unc 2A Thread ASTM A193 Grade B8m Class 2 Strain Hardened Stainless Steel Hex Bolts with A194 Gr8m Nut for Petrochemical Pipeline, Quality Assured 3/4" Unc 2A ASME 18.2.1 ASTM A193 Grade B8m Class 2 Strain Hardened Hex Bolts with En10204 3.1 Mtc Report, ISO9001 Certified 1/2" Unc 2A Thread ASTM A193 Grade B8m Class 1 Carbide Solution Treated Stainless Steel Hex Bolt with A194 Gr8m Nut for Heavy Duty Application and so on.