# DIN 938 — DIN / ISO / BS fastener equivalents and the sizes where they are not interchangeable

For DIN 938, part is Studs with a length of engagement equal to about 1 d, verified against its source on 2026-08-05.

- **DIN standard:** DIN 938 _(verified: appears in the quote below)_
- **Part:** Studs with a length of engagement equal to about 1 d _(verified: appears in the quote below)_

## What the source says

> DIN 938 | | | Studs with a length of engagement equal to about 1 d |

## Source

- https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards

Last verified: 2026-08-05. Review by: 2029-08-04.
Part of [DIN / ISO / BS fastener equivalents and the sizes where they are not interchangeable](https://referencesource.org/fastener-standard-interchangeability-exceptions/).