I like the word deadbolt because it has a finality about it. It defines a bolt that is dead because a key can unlock it only from outside. There are horizontal deadbolts and vertical deadbolts but, as far I can tell, there are no diagonal deadbolts, although Diagonal Deadbolts would make a good name for a rock band.
When it comes to locking doors with deadbolts, our creative instincts are on full display. There is the Classroom deadbolt
The Exit-only deadbolt
The Push-button deadbolt
The Single cylinder deadbolt
And a bunch of others.
Meet the deadbolt: simple, solid, functional and well, boring.
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