... . We supply first class nuts with good price and service. Deep Nut is mainly used for construction and bridge building. Our ... with good price and service.Our main grade: 4, 6, 8, 10, 12Our main raw material: Q235, 35#, 45#, 35CRMO, 42CRMOOur ... main Surface: Plain,Black ,Zinc, HDG, Dacromet etcMain Size: 5/8" to 3"; M16 to M75Besides, we can also afford products ...