DIN 7161 — Definitive Overview

What DIN 7161 covers

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.

How to Get a Legitimate DIN 7161 PDF

Important Legal & Quality Note: Simply searching for a free "DIN 7161 PDF download" can lead to outdated scans, incomplete documents, or copyright infringement. DIN standards are protected intellectual property. Here are your legitimate options:

Key Informative Takeaways for the Reader:

Does a DIN 7161 PDF exist? Officially, no. The standard was withdrawn in 1991 (effective 1993) and is not maintained by Beuth Verlag (DIN's publisher). Unauthorized scans may exist, but they are not legally current.

What did it cover? General tolerances for linear dimensions (lengths, outside diameters, steps) for machined and sheet metal parts, excluding chamfers and radii (which were in DIN 7162).

What replaced it? DIN ISO 2768-1:1991-06 (General tolerances – Part 1: Tolerances for linear and angular dimensions without individual tolerance indications).

If you see it on a drawing: Treat it as a historical artifact. Do not assume it matches ISO 2768. Consult a historical conversion table or revise the drawing to a current standard.

Where to find real information: Search for "DIN 7161 Beiblatt" (the supplement) or "DIN 7161 historical conversion to ISO 2768" in engineering archives or old technical handbooks (e.g., Dubbel or Roloff/Matek pre-1995 editions).

Beuth Verlag (official German standards publisher) – for purchase (approx. €70–90).

DIN Media – official digital version.

Your national standards body (e.g., ANSI in the US, BSI in the UK) – they resell DIN standards.

Din 7161 — Pdf

DIN 7161 — Definitive Overview

What DIN 7161 covers

How to Get a Legitimate DIN 7161 PDF

Key Informative Takeaways for the Reader:

Does a DIN 7161 PDF exist? Officially, no. The standard was withdrawn in 1991 (effective 1993) and is not maintained by Beuth Verlag (DIN's publisher). Unauthorized scans may exist, but they are not legally current.
What did it cover? General tolerances for linear dimensions (lengths, outside diameters, steps) for machined and sheet metal parts, excluding chamfers and radii (which were in DIN 7162).
What replaced it? DIN ISO 2768-1:1991-06 (General tolerances – Part 1: Tolerances for linear and angular dimensions without individual tolerance indications).
If you see it on a drawing: Treat it as a historical artifact. Do not assume it matches ISO 2768. Consult a historical conversion table or revise the drawing to a current standard.
Where to find real information: Search for "DIN 7161 Beiblatt" (the supplement) or "DIN 7161 historical conversion to ISO 2768" in engineering archives or old technical handbooks (e.g., Dubbel or Roloff/Matek pre-1995 editions).

Beuth Verlag (official German standards publisher) – for purchase (approx. €70–90).
DIN Media – official digital version.
Your national standards body (e.g., ANSI in the US, BSI in the UK) – they resell DIN standards.