When you unscrew the screw the pliers will hit against the toilet bowl and prevent the nut from turning and it will loosen.
Toilet lock nut stuck.
These are used in a toilet chiefly to secure the fill valve in the toilet tank.
How to remove a stubborn nut bolt.
Use a pair of pliers to just loosen the coupling nut.
Then try to loosen it using a correctly sized wrench.
Lock nuts are used to hold fixtures securely in place from below.
There are many ways to remove stuck and stubborn nuts bolts here are some of the ways that i ve found work best these methods contain both simple options and some that use luxurious tools such as an impact gun or welder.
What s a sput nut any.
Locate the coupling nut on the underside of the toilet tank.
While turning these stabilize the bolt from above with a screwdriver.
After breaking the fins off the nut while using wrench i tried holding the nut and turning the part in the tank.
Jarring the nut can break its bond to the bolt.
Tap with a hammer.
The end of the water supply line will come away from the connection.
Moving the nut in any direction is progress.
Some nuts have wings that you can grasp with your fingers.
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.
Gently pull the nut down.
Empty the bucket and place it underneath the water supply line.
So you probably won t run across this problem to.
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.
If the nuts don t have wings lock a pair of locking pliers around each one in turn.
Mamacanfixit mn i am trying to remove a plastic lock nut so i can replace the fill valve assembly.
Use caution as some of th.
Most of the better companies supplied a brass lock nut and a brass coupling nut to connect the water supply tube.