Sometimes the doorknob or lever loosens so it spins on its spindle while other times the lockset s mounting ring and faceplate become loose and pull away from the surface of the door.
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That s because modern door hardware uses a hidden mechanism called a detent to fasten the doorknob that can only be released using a small screwdriver tip or the end of a paper clip depending on your style of hardware.
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Loose doorknobs are a common problem on frequently used doors around the home.
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1 loosen the setscrew on the knob s shank.
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Then tighten the screw until you feel it resting against the flat side of the spindle.
2 hold the knob on the other side of the door and turn the loose knob clockwise until it fits snugly.
The thread on it matches up with the thread on the door fixing and tightens it onto the door.
The main culprits for this problem are the buildup of dirt within the lock mechanism and also the buildup of dirt.
A loose doorknob of any kind is a nuisance and if left unfixed it will eventually fall completely off the door.
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How you fix the problem depends on the design of your doorknob or lever and how it is fastened to the spindle and the door.
The detent is a spring activated pin concealed or small thin plate attached to the spindle that protrudes into a doorknob notch which prevents rotation.
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If it does not tighten then there is a chance the thread is damaged and it will need to be replaced.
Door knob is loose.
Another simple reason behind loose door knobs and loose door locks is that a screw within the door mechanism has broken off.
You can tighten a simple interior mortise lockset like the one shown at left as follows.
This means that it impairs the smooth function of the lock.
Door knobs may become loose over time.
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When dealing with a lever door handle fixing the problem will require only the most basic of tools and about 10 minutes of time.
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Methods of tightening them depend upon the type of lockset.