A deadbolt is a type of lock that extends a bolt into the door frame to secure the door in place. It is usually operated using a key, and provides an extra layer of security beyond the latch bolt.
On the other hand, a latch bolt is a type of lock mechanism that is designed to automatically lock the door from the inside when the door is closed. It is operated by turning a doorknob or handle and typically does not require a key to operate. While it provides some security, it is not as secure as a deadbolt.
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