Engineering bolts and nuts

Executive standards: HG20634, HG20613, SH3404, NB47027, ASMEB18.31.2 Product specifications: M10 ~ M155,1/2 "~ 3" material/grade: 4.8, 5.6, 8.8, 10.9, 12.9, 35#, 45#, 40MnB, 35CrMoA, 42CrMoA, A193Gr.B7, A193Gr.B8, A193Gr.B8M, 304, 316, 304L, 316L, A2-50, A2-70, A4-50, A
Executive standard: HG20634-HG20613-SH3404-NB47027-ASME B18.31.2
Product specifications: M10~M155,1/2"~3"
Material/Grade: 4.8, 5.6, 8.8, 10.9, 12.9, 35#, 45#, 40MnB, 35CrMoA, 42CrMoA, A193 Gr.B7, A193 Gr.B8, A193 Gr.B8M, 304, 316, 304L, 316L, A2-50, A2-70, A4-50, A4-70, 1Cr13, 0Cr13, etc.
Product Description:

Products used in petrochemical, engineering, chemical, machinery, nuclear power and other fields.

The surface treatment of the product includes: blackening, phosphating, zinc plating, dacrometal, cadmium plating, chromium plating, nickel-chromium alloy plating, hot-dip galvanizing, Teflon, etc.