| Old norm | DIN 440 | Washers for use in timber constructions |
| Current norm: | DIN EN ISO 7094 | Plain washers - Extra large series, product grade C |
| Current release: 2000-12 | ||
| Changes: | nominal dimensions 39, 42, 45, 48 and 52 cancelled washer thickness changed for niminal dimension 33 nominal dimension 18 mm assimilated nominal dimensions defined based on thread diameter (ISO); until now hole diameter (DIN) indication to zinc flake coatings added |
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| Drawing: |  |
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