440
For 440, fastener description is Plain washers – Extra large series, product grade C; iso equivalent is 7094; interchangeability is Nominal sizes changed, nominal size 24 size “a” redefined to the maximum, square-end hole Form R omitted; (standard DIN 440 still valid); modification notes is Nominal sizes changed, nominal size 24 size “a” redefined to the maximum, square-end hole Form R omitted; (standard DIN 440 still valid), recorded from its source on 2026-08-12.
- DIN standard
- 440 verified
- Fastener description
- Plain washers – Extra large series, product grade C
- ISO equivalent
- 7094 verified
- Interchangeability
- Nominal sizes changed, nominal size 24 size “a” redefined to the maximum, square-end hole Form R omitted; (standard DIN 440 still valid)
- Modification notes
- Nominal sizes changed, nominal size 24 size “a” redefined to the maximum, square-end hole Form R omitted; (standard DIN 440 still valid)
What the source says
440 | 7094 |
— fullerfasteners.com, retrieved 2026-08-12
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 Plain washers – Extra large series, product grade C, as of 2026-08-12.
440 | 7094 |
https://fullerfasteners.com/tech/din-iso-en-crossover-chart/
trfastenings.com says fastener description is Washers for use in timber constructions, as of 2026-08-12.
DIN 440 | ISO 7094 | | Washers for use in timber constructions |
https://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards
Sources
- fullerfasteners.comhttps://fullerfasteners.com/tech/din-iso-en-crossover-chart/
- trfastenings.comhttps://www.trfastenings.com/knowledge-base/engineering-data/fastener-standards