This International Standard specifies the characteristics of hexagon nuts with flange (style 2), with metric coarse threads from M5 to M20 inclusive, of product gradeA for threads up to and including M16 and product gradeB for threads above M16.
If, in special cases, specifications other than those listed in this International Standard are required, they can be selected from existing International Standards, for example ISO261, ISO724, ISO898-2, ISO965-2 and ISO3506-2.