603
For 603, fastener description is Mushroom head square neck bolts; iso equivalent is 8677, verified against its source on 2026-08-12.
- DIN standard
- 603 verified
- Fastener description
- Mushroom head square neck bolts verified
- ISO equivalent
- 8677 verified
What the source says
Mushroom head square neck bolts | 603 | | | | 8677 |
— fullerfasteners.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.
Fastener description
fullerfasteners.com says fastener description is Mushroom head square neck bolts, as of 2026-08-12.
Mushroom head square neck bolts | 603 | | | | 8677 |
https://fullerfasteners.com/tech/din-iso-en-crossover-chart/
trfastenings.com says fastener description is Mushroom Head Square Neck Bolts, as of 2026-08-12.
DIN 603 | | | Mushroom Head Square Neck Bolts |
https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards
Sources
- fullerfasteners.comhttps://fullerfasteners.com/tech/din-iso-en-crossover-chart/
- trfastenings.comhttps://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards