Historical
ISO 7040:1997
Prevailing torque type hexagon nuts (with non-metallic insert), style 1 - Property classes 5, 8 and 10
This international Standard specifies the characteristics of prevailing torque type hexagon nuts (with non-metallic insert), style 1, with threads from M3 up to and including M36, in product grade A for threads up to and including Ml6 and product grade B for threads above M16, and with property classes 5,8 and 10.
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.
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International Organization for Standardization [iso]
International Organization for Standardization [iso]
