Latch
A bolt is a sliding or rotating component belonging to the fittings which, together with a counterpart, can be brought into a form-fit and releasable connection and is used to lock doors, windows, lids and the like. The positive locking acts transversely to the sliding or rotation of the bolt.
When locking and locking with a door handle and key, bolts are only operated indirectly and are no longer hardware parts, but are located inside the (door) lock. The latch bolt to be retracted with the door handle is also called lock latch, the bolt to be operated with the key is the lock bolt.
Among the latches found in devices and machines, the mechanical latch has a variety of names, e.g. pawl (see pawl), but also bolt (in a bolt latch).
· 
Sliding door bolt, forged
· ,_January_2010.JPG)
Sliding latch with bow handle, which can also be used for locking (e.g. lockable with padlock)
· 
Rotating door bolt (door latch)
· 
Bar locking, consisting of rotating door bolt and additional bar bolts
See also
- Rotating lock
- Window handle
