This International Standard specifies the characteristics of prevailing torque type all-metal hexagon high nuts with metric fine pitch thread, with nominal thread diameters, D, from 8 mm up to and including 36 mm, in product grade A for sizes D up to and including 16 mm and product grade B for sizes D above 16 mm, and with property classes 8, 10 and 12. NOTE The dimensions of the nuts with the exception of the dimensions mw and hmax correspond to those given in ISO 8674. 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.