Weird mounting nut

[Springerrr]

I am trying to replace faucets and knobs in a bathroom. I went under the sink and saw very unusual mounting nuts.

They are round and notched. One is corroded (sigh). What kind of tool do I use the grab these things??

Thanks!!!

[johnjh2o]

A picture of the faucet may help. But from the looks of it the faucet is removed from the top of the sink a the faucet drops out from below. The nuts your looking at from below are used to adjust the faucet height through the sink surface.

John

[Springerrr]

Thank you so much! Here is a picture of the faucet:

[johnjh2o]

Remove the two cover plates. That would allow the faucet to drop down through the sink except for the spout will also be holding it in place. Your first picture didn't show the under side of the spout. Some had a allen screw were the pop up rod went through the spout that held the spout in place. Others have a nut under the sink on the spout that has to be removed.

John

[phishfood]

If you can unthread the chrome cap, there should be a large brass nut underneath that.

[Springerrr]

Thank you, everyone!!!

[johnjh2o]

Good job . Just curious as to how the spout came off.

John

[Springerrr]

Conventional mounting nut.