DIN 82010-1
DIN 82010-1 Stud-eye head fittings with threaded shank - Part 1: For swivels and turnbuckles, non-alloy quality steel
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 11/01/2008
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 11/01/2008