ترجمة - ألماني-فرنسي - Verschlussmutter

Xini, meaning of "contre-écrou" I got
here is "Kontermutter"

I guess they're quite the same.

C-e

Verschluss

But you may want to poll it or ask somebody, if you get negative results please reject my translation, as I'll be away for many days.

Salut!

I think, it's better: "écrou de passe-fil" - isn't it?

"Contre-écrou" = Gegenmutter.

No result on google images for écrou de passe-fil, and only 2 results for text...

Btw, what's the difference between Gegenmutter and Verschlussmutter?

Oh, I just don't know, I only got "Gegenmutter" for "écrou" in the online French to German dictionary, and when I type "Verschlussmutter" in an online German to French dictionary,
I just got no result at all...

Je crois avoir trouvé : kontermutter = contre-écrou
Verschlussmutter = écrou de fermeture

I changed it as it better conveys the meaning of Verschluss.

"...fermeture" is very well, I think ;-)