Slip the repair flange spanner under the broken toilet flange but put one of the toilet bolts through the hole in the spanner first in order to easily reinstall the toilet.
Replace toilet bolts concrete floor.
Use a pencil or grease pen to mark the drill holes around its circumference.
Toilet anchor bolts also called closet bolts or flange bolts secure the base of the toilet to the floor most of the time the original bolts remain in place even during wax ring changes.
With the toilet flange in place you are ready to install the toilet with a new wax ring.
Use tapcon anchors or a similar type of masonry concrete screws to fasten the toilet flange to the concrete slab.
Screw the toilet flange onto the concrete.
In order to replace toilet bolts without removing toilet you will have to unscrew the bolts with an anticlockwise movement while holding the nut with the other hand.
We will have to use a wrench since these bolts of fixed really tight holding the toilet onto the floor.
Toilet anchor bolts hold your toilet to the floor and keep it connected to the flange which is the opening to the waste line.
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A masonry drill is required to bore holes into which the concrete screws are a placed.
Fit the flange over the pipe to place it flat against the concrete floor.
Step 5 clean up around the bottom of the toilet and place the new wax ring on the repaired flange.
If using a plastic flange ring be careful not to crack the ring by screwing the anchors in too far.
Now that you have uncovered the bolts now it s time to unscrew it.