DIN 961 — M 8×1 to M 100×4 hexagon head bolts with fine pitch thread — ISO 8676
What is the din standard for DIN 961 — M 8×1 to M 100×4 hexagon head bolts with fine pitch thread — ISO 8676?
For DIN 961, fastener description is M 8×1 to M 100×4 hexagon head bolts with fine pitch thread; iso equivalent is 8676; interchangeability is Nominal size extended; width across flats according to DIN ISO 272 included; modification notes is Nominal size extended; width across flats according to DIN ISO 272 included, recorded from its source on 2026-08-12.
961 | 8676 | 28676 | 8676 | 8676 | 2001-03 | Hexagon head screws with metric fine pitch thread – Product grades A and B | Nominal size extended; width across flats according to DIN ISO 272 included |
— fullerfasteners.com, retrieved 2026-08-12
- DIN standard
- 961 verified
- Fastener description
- M 8×1 to M 100×4 hexagon head bolts with fine pitch thread
- ISO equivalent
- 8676 verified
- Interchangeability
- Nominal size extended; width across flats according to DIN ISO 272 included verified
- Modification notes
- Nominal size extended; width across flats according to DIN ISO 272 included verified
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 M 8×1 to M 100×4 hexagon head bolts with fine pitch thread, as of 2026-08-12.
961 | 8676 | 28676 | 8676 | 8676 | 2001-03 | Hexagon head screws with metric fine pitch thread – Product grades A and B | Nominal size extended; width across flats according to DIN ISO 272 included |
https://fullerfasteners.com/tech/din-iso-en-crossover-chart/
monsterbolts.com says fastener description is Fine thread FT., as of 2026-08-12.
DIN 961 | ISO 8676 | Fully interchangeable
https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners
trfastenings.com says fastener description is M8x1 to M52x3 Hexagon Head Bolts with fine pitch thread - product grades A and B, as of 2026-08-12.
DIN 961 | ISO 8676 | | M8x1 to M52x3 Hexagon Head Bolts with fine pitch thread - product grades A and B |
https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards
Interchangeability
fullerfasteners.com says interchangeability is Nominal size extended; width across flats according to DIN ISO 272 included, as of 2026-08-12.
961 | 8676 | 28676 | 8676 | 8676 | 2001-03 | Hexagon head screws with metric fine pitch thread – Product grades A and B | Nominal size extended; width across flats according to DIN ISO 272 included |
https://fullerfasteners.com/tech/din-iso-en-crossover-chart/
monsterbolts.com says interchangeability is Fully interchangeable, as of 2026-08-12.
DIN 961 | ISO 8676 | Fully interchangeable
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