DIN 439 — Hex Nut – Thin — ISO 4035, 4036, 8675, 4035 or 1 more — sources disagree
What is the din standard for DIN 439 — Hex Nut – Thin — ISO 4035, 4036, 8675, 4035 or 1 more — sources disagree?
For DIN 439, fastener description is Hex Nut – Thin; iso equivalent is disputed: 4035, 4036 per monsterbolts.com, 8675 per monsterbolts.com, 4035 per trfastenings.com, 3 more; interchangeability is Fully interchangeable; variant note is Chamfered/unchamfered covered by ISO pair, verified against its source on 2026-10-12.
Hex Nut – Thin | DIN 439 | ISO 4035, 4036 | Fully interchangeable | Chamfered/unchamfered covered by ISO pair.
— monsterbolts.com, retrieved 2026-09-21
- DIN standard
- 439 verified
- Fastener description
- Hex Nut – Thin verified
- ISO equivalent
- 4035, 4036 sources disagree
- Interchangeability
- Fully interchangeable verified
- Variant note
- Chamfered/unchamfered covered by ISO pair. verified
- British Standard equivalent
- BS3692 per trfastenings.com
- Modification notes
- Edge prep varies; check bearing face. also on this page
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
monsterbolts.com says iso equivalent is 4035, 4036, as of 2026-09-21.
Hex Nut – Thin | DIN 439 | ISO 4035, 4036 | Fully interchangeable | Chamfered/unchamfered covered by ISO pair.
https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners
monsterbolts.com says iso equivalent is 8675, as of 2026-09-21.
Hex Nut – Thin (Chamfered), Fine | DIN 439 | ISO 8675 | Fully interchangeable | Fine thread thin nut.
https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners
trfastenings.com says iso equivalent is 4035, as of 2026-09-22.
DIN 439 | ISO 4035 | BS3692 | Hexagon Thin Nuts |
https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards
monsterbolts.com says iso equivalent is 4036, as of 2026-09-21.
Hex Nut – Thin (Unchamfered) | DIN 439 | ISO 4036 | Check spec | Edge prep varies; check bearing face.
https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners
trfastenings.com says iso equivalent is 4036, as of 2026-09-22.
DIN 439 | ISO 4036 | BS3692 | Hexagon Thin Nuts |
https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards
trfastenings.com says iso equivalent is 8675, as of 2026-09-22.
DIN 439 | ISO 8675 | BS3692 | Hexagon Thin Nuts |
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