# 6914 — Fastener standard equivalences: DIN to ISO / EN crossover

For 6914, fastener description is High-strength hexagon head bolts with large widths across flats for structural steel bolting; iso equivalent is 7412; en iso number is 14399-4, verified against its source on 2026-08-12.

- **DIN standard:** 6914 _(verified: appears in the quote below)_
- **Fastener description:** High-strength hexagon head bolts with large widths across flats for structural steel bolting _(verified: appears in the quote below)_
- **ISO equivalent:** 7412 _(verified: appears in the quote below)_
- **EN ISO number:** 14399-4 _(verified: appears in the quote below)_

## What the source says

> High-strength hexagon head bolts with large widths across flats for structural steel bolting | 6914 | | 14399-4 | | 7412 |

## 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 **High-strength hexagon head bolts with large widths across flats for structural steel bolting**, as of 2026-08-12.

> High-strength hexagon head bolts with large widths across flats for structural steel bolting | 6914 | | 14399-4 | | 7412 |

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

trfastenings.com says fastener description is **High-strength Hexagon Head Bolts with large widths across flats for structural steel bolting**, as of 2026-08-12.

> DIN 6914 | ISO 14399-4 | | High-strength Hexagon Head Bolts with large widths across flats for structural steel bolting |

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


### ISO equivalent

fullerfasteners.com says iso equivalent is **7412**, as of 2026-08-12.

> High-strength hexagon head bolts with large widths across flats for structural steel bolting | 6914 | | 14399-4 | | 7412 |

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

trfastenings.com says iso equivalent is **14399-4**, as of 2026-08-12.

> DIN 6914 | ISO 14399-4 | | High-strength Hexagon Head Bolts with large widths across flats for structural steel bolting |

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/).