Charlston Art Deco Style Polished Chrome 48mm Euro Door Knob Set

Euro profile handles have an enlarged keyhole shape cut out of the back plate. This euro cut out in the back plate is used to house a key operated cylinder. The cylinder is used with a sash lock, which consists of a latch and a deadbolt and is mortised into the edge of the door. The lock also has the euro shape cut into it to allow the cylinder to pass through and come out on the opposite side of the door. These cylinders come in various lengths depending on the thickness of the door and various styles such as double key, key and turn, or single cylinder. The handles are fitted to either side of the door and are connected by a spindle located in the back of the knobs. When the knobs are rotated, the spindle also rotates and operates the latch allowing the door to open. When the key or thumb turn is operated, the deadbolt on the lock is thrown and the door is then locked. The handles are supplied complete with the spindle and fixing screws, but not with the lock or cylinder, which need to be purchased separately, and are normally specified to have a matching finish to the handles.