| Old norm | DIN 963 | Slotted countersunk head screws |
| Current norm: | DIN EN ISO 2009 | Slotted countersunk flat head screws - Product grade A |
| Current release: 1994-10 | ||
| Changes: | threads < M1.6 and > M10 cancelled grade 8.8 cancelled thread length changed |
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| Drawing: |  |
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| Ware groups: | ||
