DIN 8140-2
DIN 8140-2 Wire thread inserts for ISO metric screw threads - Part 2: Tapped holes for thread inserts, thread tolerances
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 08/01/2005
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 08/01/2005