DIN 6926 — Prevailing torque type hexagon nuts with flange (with non-metallic insert), with metric fine pitch thread — ISO 12125 or 7043 — sources disagree
What is the din standard for DIN 6926 — Prevailing torque type hexagon nuts with flange (with non-metallic insert), with metric fine pitch thread — ISO 12125 or 7043 — sources disagree?
For DIN 6926, fastener description is Prevailing torque type hexagon nuts with flange (with non-metallic insert), with metric fine pitch thread; iso equivalent is disputed: 12125 per fullerfasteners.com, 12125 per trfastenings.com, 7043 per trfastenings.com; en iso number is disputed: 1666 per fullerfasteners.com, 1663, 1666 per monsterbolts.com; date of current standard/modified is 1998-02; title of replacement standard is Prevailing torque type hexagon nuts with flange (with non-metallic insert), with metric fine pitch thread, verified against its source on 2026-10-12.
Prevailing torque type hexagon nuts with flange (with non-metallic insert), with metric fine pitch thread | 6926 | | 1666 | | 12125 | 1998-02 | Prevailing torque type hexagon nuts with flange (with non-metallic insert), with metric fine pitch thread | Width across flat M10 changed |
— fullerfasteners.com, retrieved 2026-09-22
- DIN standard
- 6926 verified
- Fastener description
- Prevailing torque type hexagon nuts with flange (with non-metallic insert), with metric fine pitch thread verified
- ISO equivalent
- 12125 sources disagree
- EN ISO number
- 1666 sources disagree
- Date of current standard/modified
- 1998-02 verified
- Title of replacement standard
- Prevailing torque type hexagon nuts with flange (with non-metallic insert), with metric fine pitch thread verified
- Modification notes
- Width across flat M10 changed sources disagree
- Interchangeability
- Check spec per monsterbolts.com
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.
ISO equivalent
fullerfasteners.com says iso equivalent is 12125, as of 2026-09-22.
Prevailing torque type hexagon nuts with flange (with non-metallic insert), with metric fine pitch thread | 6926 | | 1666 | | 12125 | 1998-02 | Prevailing torque type hexagon nuts with flange (with non-metallic insert), with metric fine pitch thread | Width across flat M10 changed |
https://fullerfasteners.com/tech/din-iso-en-crossover-chart/
trfastenings.com says iso equivalent is 12125, as of 2026-08-12.
DIN 6926 | ISO 12125 | | Prevailing torque type Hexagon Nuts with flange and with non-metallic insert |
https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards
trfastenings.com says iso equivalent is 7043, as of 2026-08-12.
DIN 6926 | ISO 7043 | | Prevailing torque type Hexagon Nuts with flange and with non-metallic insert |
https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards
EN ISO number
fullerfasteners.com says en iso number is 1666, as of 2026-09-22.
Prevailing torque type hexagon nuts with flange (with non-metallic insert), with metric fine pitch thread | 6926 | | 1666 | | 12125 | 1998-02 | Prevailing torque type hexagon nuts with flange (with non-metallic insert), with metric fine pitch thread | Width across flat M10 changed |
https://fullerfasteners.com/tech/din-iso-en-crossover-chart/
monsterbolts.com says en iso number is 1663, 1666, as of 2026-09-21.
Prevailing Torque Flange Nut | DIN 6926 | DIN EN 1663, 1666 | Check spec | Deformation style/serrations differ.
https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners
Modification notes
fullerfasteners.com says modification notes is Width across flat M10 changed, as of 2026-09-22.
Prevailing torque type hexagon nuts with flange (with non-metallic insert), with metric fine pitch thread | 6926 | | 1666 | | 12125 | 1998-02 | Prevailing torque type hexagon nuts with flange (with non-metallic insert), with metric fine pitch thread | Width across flat M10 changed |
https://fullerfasteners.com/tech/din-iso-en-crossover-chart/
monsterbolts.com says modification notes is Deformation style/serrations differ., as of 2026-09-21.
Prevailing Torque Flange Nut | DIN 6926 | DIN EN 1663, 1666 | Check spec | Deformation style/serrations differ.
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