This International Standard specifies the characteristics of prevailing torque type all-metal hexagon nuts,style 2, with threads from M5 up to and including M36, in product grade A for threads up to and including M16and product grade B for threads above M16, and with property classes 5, 8, 10 and 12.NOTES1 The dimensions of the nuts with the exception of the dimensions mw and hmax correspond to thosegiven in ISO 4033.2 Nuts of property class 9 are dealt with in ISO 7720.If other specifications are required, they should be selected from existing International Standards, for exampleISO 261, ISO 965-2, ISO 2320 and ISO 4759-1.