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DIN 980 > DIN EN ISO 7042

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
Comment: besides wrench size interchangeable
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