Din 7161 Pdf May 2026

Because DIN 7161 was the precursor to ISO 2768-1, the values are largely identical. However, modern drawings should utilize ISO 2768-1.

Imagine you are looking at an old German blueprint with a shaft dimension written as: ( 40 H7 ) . According to DIN 7161 (and its ISO successors), here is how you interpret it: din 7161 pdf

DIN 7161 would define these symbols and specify how to calculate the upper and lower deviations from tables. For a shaft, you might see ( 40 g6 ) , where "g" indicates the shaft's deviation. Because DIN 7161 was the precursor to ISO

DIN 7161 is a German standard that specifies dimensions, tolerances, and technical requirements for metric threaded pins (Gewindestifte) with hexagon socket (internal wrenching) or similar small threaded fasteners used primarily as set screws, locating pins, or for securing components without a head. It defines form factors, thread engagement lengths, permissible deviations, surface treatments, and marking where applicable. The standard ensures interchangeability and reliable mechanical function in assemblies across industries such as machinery, automotive, and tooling. DIN 7161 would define these symbols and specify

(Note: DIN standards are copyrighted. This article summarizes typical content and practical implications; for official, enforceable specifications you must consult the published DIN document from an authorized standards body.)

A: Legitimate free versions are rare due to copyright. However, the Fraunhofer Institute and some German Landesbibliotheken offer free viewing (not download) of historical standards on-site. Always avoid pirated copies, as they often contain errors that could cause costly manufacturing defects.