The world has a lot of different standards for a lot of things, but I have never heard of a place with the default screw thread direction being opposite.
So does each language have a fun mnemonic?
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Finnish doesn’t have one. We just learn it by instinct and use the time saved to warm up the sauna.
Or we pretend to be opening a Koskenkorva bottle in whatever orientation the bolt is in.
Same for Denmark. Except instead of warming up the sauna, it creates time for another Tuborg.