The document specifies the characteristics of flat steel washers, cadmium plated, for maximum operating temperature 235 ? for aerospace applications. They are intended for use primarily underneath nuts, for use underneath bolt heads the compatibility shall be checked.#,,#
DIN EN 2138:2000 history
2000DIN EN 2138:2000-02 Aerospace series - Washers, flat, in steel, cadmium plated; German version EN 2138:1999
2000DIN EN 2138:2000 Aerospace series - Washers, flat, in steel, cadmium plated; German version EN 2138:1999