Prevailing torque type all-metal Hex flange nut
This International Standard specifies the characteristics of prevailing torque type all-metal hexagon flange nuts and threads from M5 to M20 inclusive, in product grade A for threads up to and including M16 and
product grade B for threads above M16, and with property classes 8, 9, 10 and 12.
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.