| Round head oval taper neck bolts |
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| Basic Parameters |
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● Material：ASME/ANSI B18.5; BS4933; DIN607, etc. ● Strength level：4.6～12.9; Gr.2～Gr.8 ● Specification：M12-M100(1/2＂-4＂) ● Material：Carbon steel; alloy steel ● Surface treatment:Blackening, galvanizing, hot-dip galvanizing, mechanical galvanizing, Dacromet, Teflon, zinc-based manganese-based phosphating, etc. |
