7977
For 7977, fastener description is Unhardened taper pins with external thread; iso equivalent is 8737; en iso number is 28737; interchangeability is Technical delivery conditions partially changed; modification notes is Technical delivery conditions partially changed, verified against its source on 2026-08-12.
- DIN standard
- 7977 verified
- Fastener description
- Unhardened taper pins with external thread verified
- ISO equivalent
- 8737 verified
- EN ISO number
- 28737 verified
- Interchangeability
- Technical delivery conditions partially changed verified
- Modification notes
- Technical delivery conditions partially changed verified
What the source says
7977 | | 28737 | | 8737 | 1992-10 | Unhardened taper pins with external thread | Technical delivery conditions partially changed |
— 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 Unhardened taper pins with external thread, as of 2026-08-12.
7977 | | 28737 | | 8737 | 1992-10 | Unhardened taper pins with external thread | Technical delivery conditions partially changed |
https://fullerfasteners.com/tech/din-iso-en-crossover-chart/
trfastenings.com says fastener description is Taper Pins with thread ends and constant point lengths, as of 2026-08-12.
DIN 7977 | ISO 8737 | | Taper Pins with thread ends and constant point lengths |
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