This International Standard specifies the characteristics of prevailing torque type all-metal hexagon nuts, of style 2, 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 class 9. NOTES 1 The dimensions of the nuts with the exception of the dimensions mw and hmax correspond to those given in ISO 4033. 2 Nuts of property classes 5, 8, 10 and 12, are dealt with in ISO 7042. If other specifications are required, they should be selected from existing International Standards, for example ISO 261, ISO 965-2, ISO 2320 and ISO 4759-1.
BS ISO 7720:1998 history
2012BS ISO 7720:2012 Prevailing torque type all-metal hexagon nuts, style 2. Property class 9
1998BS ISO 7720:1998 Prevailing torque type all-metal hexagon nuts, style 2. Property class 9