this post was submitted on 13 Oct 2024
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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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[–] [email protected] 13 points 2 months ago (3 children)

We have that in Gujarati "navde nokhu satde sajjad"

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[–] [email protected] 13 points 2 months ago (1 children)

Gas valves famously use the opposite direction

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[–] NostraDavid 11 points 2 months ago

DROL: Dicht Rechts, Open Links.

I think I just prefer Links Los, which implies that the other way tightens.

Dutch, BTW.

[–] [email protected] 11 points 2 months ago (7 children)

I don't think we have a Swedish one. But we call clockwise "medsols" and counterclockwise "motsols". Meaning "with the sun" or "against the sun" Does everyone have reversed threads on plumbing or is that a Nordic/Swedish thing? All plumbing has the reversed rule, left tightens and right loosens.

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[–] [email protected] 10 points 2 months ago (2 children)

"Eins og kókflaska" or "Same as a Coca Cola bottle", not universal in Iceland though

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[–] [email protected] 9 points 2 months ago

Gas pipes. All gas fittings are reversed threaded. So it is virtually impossible to connect one to the other.

[–] [email protected] 9 points 2 months ago (11 children)

If japanese has one, I've never heard it. Japanese wife hasn't either. She was surprised it's a thing. She said maybe tradesmen might, but certainly nothing everyone knows

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[–] [email protected] 9 points 2 months ago

I remember it as right hand screw rule

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