Prevailing torque type hexagon nuts with flange (with non-metallic insert) (ISO 7043:1997, modified)
This European Standard specifies the characteristics of prevailing torque type hexagon nuts with flange, with non-metallic annular insert and coarse threads f from M5 to M20 inclusive, in product grade A for threads up to and including M16and product grade B for threads above M16 and property classes 8 and 10.
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