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

For 427, fastener description is Slotted headless screws with shank; iso equivalent is 2342, verified against its source on 2026-08-12.

- **DIN standard:** 427 _(verified: appears in the quote below)_
- **Fastener description:** Slotted headless screws with shank _(verified: appears in the quote below)_
- **ISO equivalent:** 2342 _(verified: appears in the quote below)_
- **Interchangeability:** Fully interchangeable _(per monsterbolts.com, not stated by the source above)_

## What the source says

> 427 | 2342 | | | 2342 | 2004-05 | Slotted headless screws with shank |

## 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 **Slotted headless screws with shank**, as of 2026-08-12.

> 427 | 2342 | | | 2342 | 2004-05 | Slotted headless screws with shank |

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

monsterbolts.com says fastener description is **Slotted variant.**, as of 2026-08-12.

> DIN 427 | ISO 2342 | Fully interchangeable

Source: https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners

trfastenings.com says fastener description is **Slotted Headless Screws with chamfered end**, as of 2026-08-12.

> DIN 427 | ISO 2342 | | Slotted Headless Screws with chamfered end |

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


## Source

- https://fullerfasteners.com/tech/din-iso-en-crossover-chart/
- https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners
- 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/).