BS EN ISO 7719:2012

1   Scope This International Standard specifies the characteristics of prevailing torque type all-metal hexagon regular nuts, with threads from M5 up to and including M36, in product grade A for threads up to and including M16 and product grade B for threads above M16, and with property classes 5, 8 and 10.

   NOTE  The dimensions of the nuts with the exception of  h  max  correspond to those given in [ISO 4032](/search?q=ISO%C2%A04032). 

If other specifications are required, they can be selected from existing International Standards, for example ISO 261, ISO 724, ISO 898-2, ISO 965-2, ISO 2320 and ISO 4759-1.