| Old norm | DIN 980 | All-metal prevailing torque type hexagon nuts |
| Current norm: | DIN EN ISO 7042 | Prevailing torque type (all-metal hexagon nuts), style 2 - Property classes 5, 8, 10 and 12 |
| Current release: 1998-02 | ||
| Changes: | nominal sizes M3, M4, M7, M18, M22, M27, M33 and M39 cancelled wrench size for M10 changed from 17 to 16 wrench size for M12 changed from 19 to 18 wrench size for M14 changed from 22 to 21 height of the nuts decreased fine threads cancelled |
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| Comment: | besides wrench size interchangeable |
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| Drawing: |  |
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| Ware groups: | ||
