The Lockly Duo effectively combines a latch and deadbolt in a single smart unit, but the resulting device is enormous and—a bit wonky. Most smart locks come in the form of a deadbolt, though you’ll ...

This video goes over the inside of a door handle that you would use in your house. Specific details will vary for different door handles. Parts covered in this video: handle, rosette, latch, latch ...

This video delves into the components of a typical household door handle, detailing the handle, rosette, latch, latch assembly, and a simplified locking mechanism. While the locking mechanism is ...