Oatey 43555 Flange Nuts, Galvanized Steel For repairing wobbly toilets or loose closet flanges without replacing the floor Easy-to-use floor and flange support Use for holes cut too large, rotting floors or screws that pulled loose For use on 3-Inch or 4-Inch closet flanges Six countersunk holes and two closet bolt slots for secure attachment to the floor