SERRATED FLANGE LOCK NUTS Nominal Size or Basic Major Diameter of Thread F G B H K J Width Across Flats Width Across Corners Flange Diameter Nut Thickness Wrenching Length Flange Thickness Max. Min. Max. Min. Max. Min. Max. Min. Min. Max. 6 0,138 0,312 0,302 0,361 0,342 0,422 0,406 0,171 0,156 0,10 0,02