It’s my understanding that mass produced items are all basically the same. If you buy something like a toothbrush, for example, then any other toothbrush from that same assembly line is going to be basically the same and have all the same specs (with the exception with minor defects here and there), because the machinery and process to make any those toothbrushes are all basically the same.

But that can’t be the case with locks and keys. Because if every lock and key were the same then there’d be no point in having them. Anyone could just bought the same key/lock combo could use it to unlock your front door. So all or most keys and locks must be unique. So how are they mass produced in a way that preserves their uniqueness?

  • asmoranomar@lemmy.world
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    4 hours ago

    Actually, a lot of locks ARE the same. I lived in a brand-new complex years back, and everyone had the same lock and key. It didn’t take long for some kids to start breaking into other people’s houses, and since it was all under HOA owners couldn’t just buy mismatched locks.

    Then when I bought a 10 yr old home later, I was sitting at the house when some maintenance crew unlocked my door and walked right in. They tried to tell me I was squatting and it wasn’t until they realized they were to do work on my neighbors house. Went and checked with other neighbors and found out a handful of us all had the same keys of about 4 varieties. Ironically, there were even two families that knew this before then and they told us how they bought new locks - and found out that those too were the same key.

    So basically, if you buy a new lock, you should have it checked by a locksmith and rekeyed if needed.

    • 14th_cylon@lemmy.zip
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      2 hours ago

      and since it was all under HOA owners couldn’t just buy mismatched locks.

      as an european, i always roll my eyes at the concept of hoa, but this is definitely wildest i have seen in this context 😂

      • asmoranomar@lemmy.world
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        1 hour ago

        Yeah, but they were somewhat reasonable about it. You could get new locks to prevent break-ins, but it took them a very long time to figure out what they were going to do. It was all brand new and the locks technically worked, so I guess they had to have meetings to figure out if they needed to sue or to buy new locks, change the design…or whatever the HOA does. They ended up telling everyone to keep their old locks and I think they just rekeyed them? I left during all that mess (not for that reason) so idk.

      • ageedizzle@piefed.caOP
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        1 hour ago

        Yeah even for HOA standards this seems crazy though. Like, not being allowed to change your lock? That seems like a massive security risk. Especially given the circumstances. Why does the HOA even care do they need access to everyone’s place?

    • halcyoncmdr@piefed.social
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      1 hour ago

      New locks usually tell you what key set they are on the package… So you can buy multiple of the same lock to rekey an entire house.

      While the locks can be rekeyed to thousands of options, the prepackaged options will only be a few sets.

      • asmoranomar@lemmy.world
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        1 hour ago

        Yeah, and I think when homes are manufactured they just buy sets in bulk. One would think they would rekey them, but I guess not. I mean, even if they were, you should rekey your locks in any new home anyways - but even I fell victim to that because despite knowing this, no one ever does, and it happened twice. You think one would learn.

        • halcyoncmdr@piefed.social
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          1 hour ago

          They won’t bother rekeying, but they normally are buying enough that different sets are inevitable even if they don’t actively try.