# 7344 — Fastener standard equivalences: DIN to ISO / EN crossover

For 7344, fastener description is Spring-type straight pins – Coiled, heavy duty; iso equivalent is 8748; interchangeability is Range of nominal diameters and lengths extended. Shear range changed; modification notes is Range of nominal diameters and lengths extended. Shear range changed, verified against its source on 2026-08-12.

- **DIN standard:** 7344 _(verified: appears in the quote below)_
- **Fastener description:** Spring-type straight pins – Coiled, heavy duty _(verified: appears in the quote below)_
- **ISO equivalent:** 8748 _(verified: appears in the quote below)_
- **Interchangeability:** Range of nominal diameters and lengths extended. Shear range changed. _(verified: appears in the quote below)_
- **Modification notes:** Range of nominal diameters and lengths extended. Shear range changed. _(verified: appears in the quote below)_

## What the source says

> 7344 | 8748 | 28748 | 8748 | 8748 | 2007-06 | Spring-type straight pins – Coiled, heavy duty | Range of nominal diameters and lengths extended. Shear range changed. |

## Sources disagree

More than one authority states this, and they do not state the same
thing. Both are reproduced with the source each came from.

### Fastener description

fullerfasteners.com says fastener description is **Spring-type straight pins – Coiled, heavy duty**, as of 2026-08-12.

> 7344 | 8748 | 28748 | 8748 | 8748 | 2007-06 | Spring-type straight pins – Coiled, heavy duty | Range of nominal diameters and lengths extended. Shear range changed. |

Source: https://fullerfasteners.com/tech/din-iso-en-crossover-chart/

trfastenings.com says fastener description is **Spiral Pins; heavy duty type**, as of 2026-08-12.

> DIN 7344 | ISO 8748 | | Spiral Pins; heavy duty type |

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


## Source

- https://fullerfasteners.com/tech/din-iso-en-crossover-chart/
- https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards

Last verified: 2026-08-12. Review by: 2028-08-11.
Part of [Fastener standard equivalences: DIN to ISO / EN crossover](https://referencesource.org/fastener-thread-standard-equivalence/).