Reference Source

DIN 977

For DIN 977, iso standard is ISO 21670; part is Hex Weld Nut with Flange; interchangeability verdict is Check spec, verified against its source on 2026-08-05.

DIN standard
DIN 977 verified
ISO standard
ISO 21670 verified
Part
Hex Weld Nut with Flange verified
Interchangeability verdict
Check spec verified
Sourcemonsterbolts.com
Verified2026-08-05
Review by2029-08-04
DatasetDIN / ISO / BS fastener equivalents and the sizes where they are not interchangeable

What the source says

Hex Weld Nut with Flange | DIN 977 | ISO 21670 | Check spec | Weld bosses/OD differ by series.

monsterbolts.com, retrieved 2026-08-05

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.

Part

monsterbolts.com says part is Hex Weld Nut with Flange, as of 2026-08-05.

Hex Weld Nut with Flange | DIN 977 | ISO 21670 | Check spec | Weld bosses/OD differ by series.

https://monsterbolts.com/pages/common-din-numbers-for-metric-fasteners

trfastenings.com says part is Hexagon Weld Nuts with flange, as of 2026-08-05.

DIN 977 | ISO 21670 | | Hexagon Weld Nuts with flange |

https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards

Sources

Last verified against source: 2026-08-05. Due for re-check by 2029-08-04. This page as Markdown · OKF bundle · full dataset as JSON.