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.
How to tighten door handles.
Using an awl or small screwdriver push the button in all the way and at the same time pull off the handle.
Determine whether you will need an allen wrench or a screwdriver based on the style of set screw which you will find on the bottom of the.
From there tighten the set screw back into place.
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.
If threaded twist on the handle on the shaft until its neatly up against the door.
Give yourself a little room to spin properly and tighten the set screw.
I show how i tightened my loose door handle that is made by kwikset.
Take doorknob to hardware store if necessary.
Identify the screw in the doorknob collar.
Release the tab or button remove the inside doorknob by locating the button like our model metal tab or wire clip on the side of the knob that acts as a release.
If unthreaded pop the knob onto the shaft and snug to the door.
Inspect the rod s surface and locate the groove where the set screw needs to be secured.
How to tighten a lever door handle.