These are used in a toilet chiefly to secure the fill valve in the toilet tank.
Toilet lock nut stuck.
So you probably won t run across this problem to.
The lock nut threads onto the fill valve inlet just above where the water supply hose or tube coupling attaches.
Then try to loosen it using a correctly sized wrench.
Empty the bucket and place it underneath the water supply line.
Lock nuts are used to hold fixtures securely in place from below.
What s a sput nut any.
The end of the water supply line will come away from the connection.
Most of the better companies supplied a brass lock nut and a brass coupling nut to connect the water supply tube.
Jarring the nut can break its bond to the bolt.
While turning these stabilize the bolt from above with a screwdriver.
Moving the nut in any direction is progress.
Locate the coupling nut on the underside of the toilet tank.
Use caution as some of th.
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.
Then finish loosening the nut with your fingers.
Tap with a hammer.
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.
How to remove a stubborn nut bolt.
Use a pair of pliers to just loosen the coupling nut.
Super glued locknut on toilet fill valve under tank author.
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.
Mamacanfixit mn i am trying to remove a plastic lock nut so i can replace the fill valve assembly.
When you unscrew the screw the pliers will hit against the toilet bowl and prevent the nut from turning and it will loosen.