Bolt, Nut, Customized Fastener manufacturer / supplier in China, offering 1 3/8" X 450mm ASTM A193 Gr B5 Stud Bolt with ASTM A194 3 Heavy Hex Nuts, Alloy Steel 42CrMo/32crmo/15CrMo/13crmo44 16crsi2mo 12cr1MOV Stud Bolts, S31803 S32205 S31050 Zeron 100 Inconel 601 M16 Stud Bolt and so on.