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Does each language have "lefty loosey righty tighty"? (lemmy.world)

submitted 1 month ago* (last edited 1 month ago) by vatlark@lemmy.world to c/asklemmy@lemmy.ml

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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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[–] teslasaur@lemmy.world 11 points 1 month ago (5 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.

[–] zout@fedia.io 4 points 1 month ago

The reversed rule in plumbing is only for gas lines in the Netherlands.

[–] brennesel@discuss.tchncs.de 3 points 1 month ago (1 children)

In the plumbing sector, left-hand threads are used whenever two pipe ends need to be connected that cannot be rotated. The connector is then equipped with a left-hand and right-hand thread and can therefore easily be screwed between them.

So it's not just typical for Nordic countries, but depends on the application.

[–] teslasaur@lemmy.world 2 points 1 month ago

I could give you an example. In my kitchen we have a faucet with a detachable aerator. We detach it when we want to use a attachment for a garden hose. When attaching the aerator or the garden hose attachment, the threads are reversed. I might be wrong, but two opposing threads shouldn't be able to screw into one another right?

[–] teegus@sh.itjust.works 3 points 1 month ago

Whut. Chaged my bathroom sink not long ago and it definitely loosens to the left/counter clock. Norway.

[–] pmk@lemmy.sdf.org 2 points 1 month ago (1 children)

Let's start saying "rajtan-tajtan" as some weird anglicism?

[–] teslasaur@lemmy.world 2 points 1 month ago

Hahaha thats brilliant

[–] general_kitten@sopuli.xyz 1 points 1 month ago

In finnish also same but just replace sun with day. No idea about plumbing though.