... , DIN85, DIN963, DIN7991, DIN6912, DIN931, ISO7380etc. A. Mini screw and nuts: M1.0 to M4 According to customers screws length ... and DIN standard in our technical scopes. B. Usual screw and nuts: M4.0 to ... , Anodizing, Black oxide or Plating colorFeatureslight weight, acid and alkali resistance, anti-corrosion, excellent mechanical strength etc.StandardDIN912 ...