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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. Door handle - Wikipedia

   en.wikipedia.org/wiki/Door_handle

   This is an accepted version of this page This is the latest accepted revision, reviewed on 21 January 2025. Device to open or close door Various examples of door handles throughout history A door handle or doorknob is a handle used to open or close a door. Door handles can be found on all types of doors including: exterior doors of residential and commercial buildings, internal doors, cupboard ...

4. Mortise lock - Wikipedia

   en.wikipedia.org/wiki/Mortise_lock

   This example has two bolts: a sprung latch at the top, and a locking bolt at the bottom. Right: the box keep, installed in the doorjamb. A mortise lock (also spelled mortice lock in British English ) is a lock that requires a pocket—the mortise —to be cut into the edge of the door or piece of furniture into which the lock is to be fitted.

5. Molly (fastener) - Wikipedia

   en.wikipedia.org/wiki/Molly_(fastener)

   For heavy objects, multiple molly bolts may be required. The name Molly was formerly trademarked [ 2 ] but is now often used in generic reference . Other names used for this same general type of fastener include hollow-wall anchor and hollow-door anchor , sometimes with design variations but always with the same design theme of expansion via ...

6. List of screw and bolt types - Wikipedia

   en.wikipedia.org/wiki/List_of_screw_and_bolt_types

   A rib neck carriage bolt has several longitudinal ribs instead of the square section, to grip into a metal part being fixed. confirmat screw: confirmat screw: Used in particleboard and medium-density fiberboard: elevator bolt: An elevator bolt is a similar to a carriage bolt, except the head (or foot, depending on the application) is thin and flat.

7. Faulty door panel on Alaska Airlines flight had no bolts ...

   www.aol.com/news/faulty-door-panel-alaska...

   The door panel on an Alaska Airlines Boeing 737 that fell off midair had no bolts installed on the door plug, according to preliminary findings released Tuesday by the National Transportation ...