DIN 551
For DIN 551, iso standard is ISO 4766; part is Slotted Set Screw – Flat; interchangeability verdict is Check spec, verified against its source on 2026-08-05.
- DIN standard
- DIN 551 verified
- ISO standard
- ISO 4766 verified
- Part
- Slotted Set Screw – Flat verified
- Interchangeability verdict
- Check spec verified
What the source says
Slotted Set Screw – Flat | DIN 551 | ISO 4766 | Check spec | Slot width/tolerance differences.
— monsterbolts.com, retrieved 2026-08-05
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.
Part
monsterbolts.com says part is Slotted Set Screw – Flat, as of 2026-08-05.
Slotted Set Screw – Flat | DIN 551 | ISO 4766 | Check spec | Slot width/tolerance differences.
https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners
trfastenings.com says part is Slotted Set Screws with flat point, as of 2026-08-05.
DIN 551 | ISO 4766 | | Slotted Set Screws with flat point |
https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards
Sources
- monsterbolts.comhttps://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners
- trfastenings.comhttps://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards