Door Knob. Thursday , November 30th , 2017 - 03:33:05 AM
Most door knob manufacturers are also wholesale suppliers and exporters. The commonly used materials for making door knobs are brass, iron, wood, wire, ceramic, stainless steel and aluminum. Door knob is a handle used for opening and closing a door. Door knobs are often sold as complete locksets. Porcelain door knob/rosette assemblies are offered for both sides of the door. Passage/privacy sets consists of a latch, faceplate and strikeplate.
Interior door knobs are available in four primary styles; privacy, passage, double dummy and single dummy. Privacy and passage knobs turn and operate a latch mechanism - the difference is privacy style knobs have a push pin lock (these are generally used on bathrooms or bedrooms). Single dummy and double dummy knobs do not turn or operate a latch mechanism - a single dummy knob is one knob on the exterior side of the door while a double dummy is a knob on either side of one door. Note: Most double dummy knobs cannot be used on two separate doors.
Interior rooms are different from exterior ones in both purpose and facility. For example, exterior doors are exposed to the outside which makes it essential for them to be an attractive bright color to magnetize other`s focus. Again they are more often reached for by people from the outside. So, they need to have a proper security system to maintain safety measures of the house. This is why manufacturers design exterior door knobs differently. However, inside lever knobs are free from these concerns.
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