DIN 551 — Slotted set screws with flat point — ISO 4766
What is the din standard for DIN 551 — Slotted set screws with flat point — ISO 4766?
For DIN 551, fastener description is Slotted set screws with flat point; iso equivalent is 4766; en iso number is 24766; date of current standard/modified is 1992-10; title of replacement standard is Slotted set screws with flat point, verified against its source on 2026-10-12.
Slotted set screws with flat point | 551 | | 24766 | | 4766 | 1992-10 | Slotted set screws with flat point | No modifications of dimensions |
— fullerfasteners.com, retrieved 2026-09-22
- DIN standard
- 551 verified
- Fastener description
- Slotted set screws with flat point verified
- ISO equivalent
- 4766 verified
- EN ISO number
- 24766 verified
- Date of current standard/modified
- 1992-10 verified
- Title of replacement standard
- Slotted set screws with flat point verified
- Modification notes
- No modifications of dimensions sources disagree
- Interchangeability
- Check spec per monsterbolts.com
What trfastenings.com says
DIN 551 | ISO 4766 | | Slotted Set Screws with flat point |
— trfastenings.com, retrieved 2026-08-12
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 — deciding between them is yours, not ours.
Modification notes
fullerfasteners.com says modification notes is No modifications of dimensions, as of 2026-09-22.
Slotted set screws with flat point | 551 | | 24766 | | 4766 | 1992-10 | Slotted set screws with flat point | No modifications of dimensions |
https://fullerfasteners.com/tech/din-iso-en-crossover-chart/
monsterbolts.com says modification notes is Slot width/tolerance differences., as of 2026-09-21.
Slotted Set Screw – Flat | DIN 551 | ISO 4766 | Check spec | Slot width/tolerance differences.
https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners
Sources
- fullerfasteners.comhttps://fullerfasteners.com/tech/din-iso-en-crossover-chart/
- monsterbolts.comhttps://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners
- trfastenings.comhttps://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards