This International Standard specifies the characteristics of hexagon nuts, style 2, with metric fine pitch thread, with nominal thread diameters d from 8 mm up to and including 36 mm, with product grade A for sizes d up to and including 16 mm and product grade B for sizes d over 16 mm.
If, in special cases, specifications other than those listed in this International Standard are required, they should be selected from existing International Standards, for example ISO 724, ISO 898-6, ISO 965-1 and ISO 4759-1.
Coarse thread hexagon nuts, style 2, according to ISO 4033 should be the first choice.
NOTE For hexagon nuts, style 1, with fine pitch thread, see ISO 8673.
ISO 8674:1999 history
2023ISO 8674:2023 Fasteners — Hexagon high nuts (style 2), with fine pitch thread
2012ISO 8674:2012 Hexagon high nuts (style 2) with metric fine pitch thread - Product grades A and B
1999ISO 8674:1999 Hexagon nuts, style 2, with metric fine pitch thread - Product grades A and B
1988ISO 8674:1988 Hexagon nuts, style 2, with metric fine pitch thread; product grades A and B