ISO 8673:2012 PDF

Scope: This International Standard specifies the geometry of hexagon nuts with nominal thread diameter from 8 mm up to and including 64 mm and the mechanical properties of hexagon regular nuts (style 1) with metric fine pitch thread in product grade A for nominal thread diameters 8 mm ≤ D ≤ 16 mm and in product grade B for nominal diameters 16 mm < D ≤ 39 mm. If, in special cases, specifications other than those listed in this International Standard are required, they can be selected from existing International Standards, for example ISO 724, ISO 898-2, ISO 965-1, ISO 3506-2 NOTE As there is an insufficient nut height due to the fine pitch thread, there is a higher probability of nut thread stripping. Hence, high nuts (style 2) according to ISO 8674 are preferably used.

ISO 8673:2012 history

2023 ISO 8673:2023 Fasteners — Hexagon regular nuts (style 1), with fine pitch thread
2012 ISO 8673:2012 Hexagon regular nuts (style 1) with metric fine pitch thread - Product grades A and B
1999 ISO 8673:1999 Hexagon nuts, style 1, with metric fine pitch thread - Product grades A and B
1988 ISO 8673:1988 Hexagon nuts, style 1, with metric fine pitch thread; product grades A and B