... : Stainless steel, carbon steel 2.Size: M6-M52 3.Grade of strength: 4,6,8,10 4.Finish: ZP, HDG, black Nuts Material: Stainless steel, mild steel ... , carbon steel Standard: DIN, ISO, JIS, AISI, GBGrade of strength ... anchor can be supplied according to customers' drawing or samples stainless steel bolts nuts