ISO 4161:2012 Hexagon nuts with flange, style 2 - Coarse thread

standard by International Organization for Standardization, 09/01/2012

Full Description

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.