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NF EN ISO 8673 Standard Dimensions for

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Hexagon nuts with metric fine thread

This standards (NF EN ISO 8673) specifies requirements for hexagon nuts with nominal thread diameter from 8 mm to 64 mm and mechanical properties of hexagonal nuts (style 1) with metric fine thread in product grade A for nominal thread diameter D smaller or equal to 16 mm and in product grade B for nominal thread diameter larger than 16 mm and smaller or equal to 39 mm.

This standards (DIN 8674 and equivalents) specifies requirements for hexagon high nuts (style 2) with metric fine pitch thread with thread diameter D from 8 mm to inclusive 36 mm. Product grade A for D ≤ 16 and product grade B for D > 16 mm.

Dimensional Drawing and Technical Diagrams

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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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