DIN 934 Hex Nut, Low Carbon Steel, Stainless Steel, Zinc Plated, Black, Grade 4.8 6.8 8.8 10.9 12.9, Various Sizes Are Available Please Choose The Main Specifications 1.StandardDIN, ANSI, ISO, JIS, BSW, GB And Non-Standard Items2.MaterialCarbon Steel, Stainless Steel4.Surface TreatmentPlain, Zinc Plated, Black, Hot Dip Galvanized, Etc.5.SizeM2~M60