Post #3180299
2026-04-26 16:12 UTC
@ArtBrew@mastodon.art That kind of variation has been around for about as long as locks. Symmetrical keys have also been a thing for decades, though not so much in residential door locks.
Different types of lock cylinder are usually mounted a certain way, I don't know why. I do think Euro profile cylinders are getting more common, and they're often mounted pins/teeth-down, and rentals like them because they're easier to rekey between tenants.
Replies (1)
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@eishiya@mastodon.art 2026-04-26 16:23
@ArtBrew@mastodon.art AFAIK teeth/pins above keeps grime from accumulating in the mechanism because it falls out, but in practice it rarely makes a difference, especially with rentals where they end up getting swapped out anyway. I don't know of any advantage to teeth/pins below other than perhaps consistency with lever locks (where keys are usually inserted teeth-below for reasons too long to fit in this post), which were also common in the UK and Europe for a long time.