... DIN85, DIN963, DIN7991, DIN6912, DIN931, ISO7380etc. A. Mini screw and nuts: M1.0 to M4 According to customers screws length ... Anodizing, Black oxide or Plating colorFeatureslight weight, acid and alkali resistance, anti-corrosion, excellent mechanical strength etc. ... etc.2.Aerospace,Indusrty,Navigation,Smelting,Chemical plants, and so on.Load portShanghai or TianjinPacking boxNon-wooden case, ...