Handle Sets locksmith service

A door handle is an attached mechanism used to open or close a door. In the United States, a door handle generally can refer to any fixed or lever-operated door latch device, including on car doors. The term doorknob (or simply doorknob) tends to refer to round operating mechanisms. Door Handles and Doorknobs are the same exact thing. The terms are completely interchangeable.

The traditional door knob has a bolt or spindle running through it that sits just above a cylinder, to which the spindle is connected. Turning the knob pulls the cylinder in the direction of the turn. The end of the cylinder is the latch bolt (more simply known as the latch), which protrudes into a space carved out of the door frame, and which prevents the door from being opened if the knob is not turned. A spring or similar mechanism causes the latch to return to its protruding state whenever the knob is not being turned. Escutcheon plates are the keyhole covers, usually circular, through which keys pass to enter the lock body. If the door handles have a square or rectangular plate on which the handle is mounted this is called the backplate.