Reference Source

DIN 9021

For DIN 9021, iso standard is ISO 7093; part is Washer, Plain Large; interchangeability verdict is Fully interchangeable, verified against its source on 2026-08-05.

DIN standard
DIN 9021 verified
ISO standard
ISO 7093 verified
Part
Washer, Plain Large verified
Interchangeability verdict
Fully interchangeable 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

Washer, Plain Large | DIN 9021 | ISO 7093 | Fully interchangeable | Large OD 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 Washer, Plain Large, as of 2026-08-05.

Washer, Plain Large | DIN 9021 | ISO 7093 | Fully interchangeable | Large OD series.

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

trfastenings.com says part is Plain Washers with large outside diameter, as of 2026-08-05.

DIN 9021 | ISO 7093 | | Plain Washers with large outside diameter |

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.