The most basic of doorknobs is simply a protrusion on a door which provides a place for a hand to grab in order to pull the door towards you. However, most households prefer to use doorknobs which incorporate a mechanism which ensures the door remains closed until the mechanism is activated.
Doorknobs with this mechanism in work by use of a latch which extends from within the door into a recess in the frame This ensures that the door cannot be pulled open or perhaps blown …
home improvement, doors, door knobs, hendles
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