# 7346 — Fastener standard equivalences: DIN to ISO / EN crossover

For 7346, fastener description is Spring-type straight pins, slotted, light duty; iso equivalent is 3337; en iso number is 13337; interchangeability is Specification “non-jamming” included; chamfer redefined; partial change of dimensions; modification notes is Specification “non-jamming” included; chamfer redefined; partial change of dimensions, recorded from its source on 2026-08-12.

- **DIN standard:** 7346 _(verified: appears in the quote below)_
- **Fastener description:** Spring-type straight pins, slotted, light duty _(verified: appears in the quote below)_
- **ISO equivalent:** 3337 _(verified: appears in the quote below)_
- **EN ISO number:** 13337 _(verified: appears in the quote below)_
- **Interchangeability:** Specification “non-jamming” included; chamfer redefined; partial change of dimensions
- **Modification notes:** Specification “non-jamming” included; chamfer redefined; partial change of dimensions

## What the source says

> Spring-type straight pins, slotted, light duty | 7346 | 13337 | | | 3337 |

## 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, slotted, light duty**, as of 2026-08-12.

> Spring-type straight pins, slotted, light duty | 7346 | 13337 | | | 3337 |

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

trfastenings.com says fastener description is **Spring-type Straight Pins; (roll pins) lightweight type**, as of 2026-08-12.

> DIN 7346 | ISO 13337 | | Spring-type Straight Pins; (roll pins) lightweight type |

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


### ISO equivalent

fullerfasteners.com says iso equivalent is **3337**, as of 2026-08-12.

> Spring-type straight pins, slotted, light duty | 7346 | 13337 | | | 3337 |

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

trfastenings.com says iso equivalent is **13337**, as of 2026-08-12.

> DIN 7346 | ISO 13337 | | Spring-type Straight Pins; (roll pins) lightweight 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/).