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ISO 7043 Standard Dimensions for Self-locking hex flange nuts with non metallic insert

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Prevailing torque type hexagon nuts with flange (with non-metallic insert), style 2 — Product grades A and B

ISO 7043:2012 specifies the characteristics of prevailing torque type hexagon nuts with flange (with non-metallic insert), of style 2, with 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 and 10.

Dimensional Drawing and Technical Diagrams

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Key Dimensions and Technical Parameters

Dimensions in mm - source ISO 7043
Publication date: 09/2012
d. Thread size: Coarse P m min h min÷max c min dc max s max e min
M 5 0.8 4.7 6.52÷7.10 1 11.8 8 8.79
M 6 1 5.7 8.52÷9.10 1.1 14.2 10 11.05
M 8 1.25 7.64 10.4÷11.1 1.2 17.9 13 14.38
M 10 1.5 9.64 12.8÷13.5 1.5 21.8 15 16.64
M 12 1.75 11.57 15.4÷16.1 1.8 26 18 20.03
M 14 2 13.3 16.9÷18.2 2.1 29.9 21 23.36
M 16 2 15.3 19÷20.3 2.4 34.5 24 26.75
M 20 2.5 18.7 22.7÷24.8 3 42.8 30 32.95

Reproduced by permission of DIN Deutsches Institut für Normung e. V. The definitive version for the implementation of this standard is the edition bearing the most recent date of issue, obtainable from Beuth Verlag GmbH, Burggrafenstraße 6, 10787 Berlin, Germany.
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