ترجمه - آلمانی-انگلیسی - Verschlussmutter

cap nut in German : "cap nut: Blindmutter; Hutmutter"

I would have switched the two translations by Gatinha: lock nut as main translation.

You're right, as "Vershluss" means "lock"

I have checked the Swedish defense technical translations here.
and I cannot find a 'lock nut' I could find a 'locking nut', wouldn't that be appropriate?

You're right on, Porfyhr ! Here are these locking nuts, they are very similar to the "écrous de fermeture"!
so I'll edit with "locking nut"
Thanks a lot!

Hmmm... in an online Hungarian-English dictionary I found this: female nut or simply nut
(in Hu Verschlussmutter is ´anyacsavar´)