For a rack, the one shown in this thread is the best DIY version of a lock I've seen for people. My plan is to just lock people out of the room if they're not trustworthy around my snakes, so I'm not actually using this on mine, but I'd plan it based on this and what I can find at the hardware store.
https://r.tapatalk.com/shareLink?url...9&share_type=t
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