DIN 13-50
ISO general purpose metric screw threads - Part 50: Combination of tolerance classes for formed internal screw threads
Metrisches ISO-Gewinde allgemeiner Anwendung - Teil 50: Kombination von Toleranzklassen für geformte Innengewinde
Overview
This standard specifies combinations of tolerance classes for general purpose ISO internal metric screw threads manufactured using chipless thread forming. For threads not listed in Tables 2 to 5, the specifications from Table 1 and DIN ISO 965-1 shall be used. The Committee has decided to use the customary German market designation “Gewindeformen” (translated as “thread forming” in this standard). The designation “Gewindefurchen” (translated as “cold-forming” in the previous edition of this standard) used in DIN 8583-5 has no market relevance and has been intentionally rejected. This document has been prepared by Working Committee NA 152-02-01 AA "Gewinde" ("Screw threads") at DIN Standards Committee Technical Fundamentals (NATG).
