Lock nuts are used to hold fixtures securely in place from below.
Toilet lock nut stuck.
To make sure you hit the nut itself and not the surrounding threads place a center punch on the nut and strike the punch with a hammer.
These are used in a toilet chiefly to secure the fill valve in the toilet tank.
Super glued locknut on toilet fill valve under tank author.
After breaking the fins off the nut while using wrench i tried holding the nut and turning the part in the tank.
Moving the nut in any direction is progress.
Then finish loosening the nut with your fingers.
Use caution as some of th.
The lock nut threads onto the fill valve inlet just above where the water supply hose or tube coupling attaches.
Mamacanfixit mn i am trying to remove a plastic lock nut so i can replace the fill valve assembly.
While turning these stabilize the bolt from above with a screwdriver.
Use a pair of pliers to just loosen the coupling nut.
Eventually and in an effort to save money some of the companies started shipping these ballcocks with a white metal nickel composite lock nut and coupling nut.
Then try to loosen it using a correctly sized wrench.
Jarring the nut can break its bond to the bolt.
When you unscrew the screw the pliers will hit against the toilet bowl and prevent the nut from turning and it will loosen.
How to remove a stubborn nut bolt.
If the nuts don t have wings lock a pair of locking pliers around each one in turn.
Some nuts have wings that you can grasp with your fingers.
Tap with a hammer.
Gently pull the nut down.
Most of the better companies supplied a brass lock nut and a brass coupling nut to connect the water supply tube.
Empty the bucket and place it underneath the water supply line.
The end of the water supply line will come away from the connection.
So you probably won t run across this problem to.