This standard was last reviewed and confirmed in 2022. Therefore this version remains current.
ISO 4161:2012 specifies the characteristics of hexagon nuts with flange (style 2), with metric coarse threads from M5 to M20 inclusive, of product grade A for threads up to and including M16 and product grade B for threads above M16.
Status: PublishedPublication date: 2012-09
Edition: 3Number of pages: 7
Technical Committee: ISO/TC 2/SC 12 Fasteners with metric internal thread
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