# DIN 548 — DIN / ISO / BS fastener equivalents and the sizes where they are not interchangeable

For DIN 548, part is Round Nuts with set pin holes inside, verified against its source on 2026-08-05.

- **DIN standard:** DIN 548 _(verified: appears in the quote below)_
- **Part:** Round Nuts with set pin holes inside _(verified: appears in the quote below)_

## What the source says

> DIN 548 | | | Round Nuts with set pin holes inside |

## 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/).