Finish Galvanized, Steel Hot Dip Galvanized, Stainless Steel   DIN (Deutsches Institut für Normung – German Institute for Standardization) standards are issued for a variety of components including industrial fasteners as Metric DIN 933 Hexagon Head Cap Screws / Bolts. The DIN standards remain common in Germany, Europe and globally even though the transition to ISO standards is taking place. Chemical composition of steel metric DIN 933 Hexagon Head Cap Screws / Bolts Full Thread