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deadlock

Door and Lock Terminology – Advanced Edition

Remember last week when I introduced (maybe re-introduced) you to the nightlatch function? In the beginning, I was discussing how confusing the language of locks can be. Somewhat unsurprisingly, that hasn’t changed in the last week and it hasn’t changed since I wrote about door and lock terminology here, here, here, or here. The only […]

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Cylindrical Lock Functions Explained – Door & Lock Terminology

Lock function is a critical component of proper door operation.  Think of your office door; would you consider a lever set that didn’t lock to be adequately secure for this door?  When you take into account the likelihood of an employee on the other side of that door counting the cash from their shift, it’s […]

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