I have a frameless tubular shower door handle back to back similar to the picture listed.
How do you tighten shower door handle.
The last thing you want to do is continually tighten metal to glass.
To depress the detent use the end of a metal paper clip or the point of an awl inserting it into the hole and pressing the detent down while twisting and removing the door handle shaft off the spindle.
Lever type shower handles use a set screw under the curve of the handle to secure it to the faucet.
Many people use a liquid thread locking compound to alleviate this issue.
Levers handles slide onto a rod assembly with a set screw.
With others you ll find a setscrew near the base of the handle.
Over time the threads on the set screw expand just enough to make the screw loose but not enough to strip the threads.
When dealing with a lever door handle fixing the problem will require only the most basic of tools and about 10 minutes of time.
Turn off the shower and inspect the knob to determine how it is attached to the valve control.
Setscrews usually require a hex or allen wrench.
This type is usually found on round doorknob hardware.
This type is found commonly on lever style door handles.
After tightening the 2 posts they will actually pull the opposite side of the handle tighter replace the remaining side of the handle the same way you took it off.
Is this a two man job and do both handles have to be held together in order to tighten.
A worm screw in the side of the knob where it slides onto the valve control will require an allen wrench also called a hex key to tighten it.
A loose doorknob of any kind is a nuisance and if left unfixed it will eventually fall completely off the door.
If you have a loose valve handle on a shower bathroom or kitchen faucet tighten the screw that holds the handle in place.
A screw on the end of the knob in the center can be tightened with a screwdriver.
A loose shower handle is usually due to the set screw.