2021DIN ISO 965-1/A1:2021-01 ISO general purpose metric screw threads - Tolerances - Part 1: Principles and basic data - Amendment 1 (ISO 965-1:2013/DAM 1:2020); Text in German and English / Note: Date of issue 2020-12-04*Intended as an amendment to DIN ISO 965-1 (2017-05).
DIN ISO 965-1:1999 ISO general purpose metric screw threads - Tolerances - Part 1: Principles and basic data (ISO 965-1:1998) has been changed from DIN 13-15:1982 .