DIN 76-1:2016 - Thread run-outs and thread undercuts - Part 1: For ISO metric threads in accordance with DIN 13-1
Fließformer für metrisches ISO-Gewinde DIN 13 - Drabus
DIN 13-50:2017 - ISO general purpose metric screw threads - Part 50: Combination of tolerance classes for formed internal screw threads
Metrisches ISO Gewinde: Gewinde-Lehrenmaße Tabellen, Berechnung nach DIN ISO 1502: Bestenreiner, H. -J., Kaufmann, M.: 9783410149422: Amazon.com: Books
Hand Screw Tap Metric Iso-Gewinde DIN13 Vap HSSE-V3,EMo5V3,M3-20 | eBay