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  2. Deadbolt - Wikipedia

    en.wikipedia.org/wiki/Deadbolt

    Door with two locks, one in the doorknob and a separate deadbolt. A deadbolt or deadlock is a type of lock morticed into a wooden door where a bolt is thrown into the door frame, using a key from either side, to secure the door. [1] It is distinct from a spring bolt lock because a deadbolt can only

  3. Mortise lock - Wikipedia

    en.wikipedia.org/wiki/Mortise_lock

    The parts included in the typical US mortise lock installation are the lock body (the part installed inside the mortise cut-out in the door); the lock trim (which may be selected from any number of designs of doorknobs, levers, handle sets and pulls); a strike plate (or box keep), which lines and reinforces the cavity in the door jamb or frame ...

  4. Bored cylindrical lock - Wikipedia

    en.wikipedia.org/wiki/Bored_cylindrical_lock

    Some commercially-sold doors may come prepared to receive one or more bored cylindrical locks, such as entry doors, which typically require both a door knob and dead bolt. In the United States, typically, the face bore is sized from 1.5 to 2.125 inches (3.81 to 5.40 cm) in diameter and is centered at 2.375 or 2.75 inches (6.03 or 6.99 cm) from ...

  5. Crash bar - Wikipedia

    en.wikipedia.org/wiki/Crash_bar

    Crash bar doors in a school, with upper vertical rod latches. A crash bar (also known as a panic exit device, panic bar, or bump bar) [1] [2] is a type of door opening mechanism which allows users to open a door by pushing a bar.

  6. Door lock - Wikipedia

    en.wikipedia.org/wiki/Door_Lock

    a deadbolt lock; a door chain; a locking door handle; an electromagnetic lock, which holds a door shut when electricity is supplied to it; a keycard lock, commonly used on hotel doors; a mortise lock, a lock installed in a hollowed-out pocket within a door; a rim lock, a lock fixed to the exterior of the door

  7. Door breaching - Wikipedia

    en.wikipedia.org/wiki/Door_breaching

    For doors, a shove knife can be wedged into the door jamb and open the latch bolt without having to deal with the lock itself. [3] Another option is to remove the cylinder lock from the door using instruments like an A-tool or K-tool ; these methods also allow the door to be closed and re-locked afterward.

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