ISO-4161 Complete Document History
Hexagon nuts with flange, style 2 - Coarse thread

Complete Current Edition:
   3RD EDITION - Hexagon nuts with flange, style 2 - Coarse thread - Sept. 1, 2012

Obsolete Revision Information:
   2ND EDITION - HEXAGON NUTS WITH FLANGE - COA - March 15, 1999
   1ST EDITION - Hexagon nuts with flange -- Product grade A - Oct. 1, 1983