DIN 6094-13
DIN 6094-13 Means of packaging - Finishes - Part 13: 2 thread- and 3 thread-screw-finishes
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 05/01/1997
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 05/01/1997