Weird sink bolt

[Slothy]

Hey, a couple months back, honestly probably a year now i went to change my kitchen sink, but when i went under to unscrew and unbolt it i noticed this weird "bolt" i guess that ive never seen before. And i couldnt get it off. As it wasnt such an issue i decided to hold off on the sink replacement but recently i noticed water is leaking from the sink top. So here i am. The red arrow in the picture points to it. Its got 3 holes with the other two opposite of the one in the picture in a triangle. The odd part is they have nothing in the holes and i cant for the life of me get it off. Help would be appreciated!

 

[Jeff Handy]

Your pic is waaaay too dark.
Here is a brighter version.

 

[Jeff Handy]

Post more pics with better lighting, and show more angles from the other side of all the hoses.
Also post a good pic of the whole faucet, that will help a ton.

 

[Jeff Handy]

My first thought is that the nut is just part of an adjustable locking ring, and the faucet has to be released from above.

 

[Slothy]

Alright, here ya go. I tried to get all the angles i could. And i appreciate the help!

 

[johnjh2o]

There are four screws in the large nut under the sink. Loosen them and the large nut will spin-off.

 

[Jeff Handy]

It looks like an old Delta faucet, but the faucet pic was blurry and dark.

It looks like that one blurry bolt has to come out, and then that somewhat triangular locking ring can spin off to let the threaded shaft go up through the sink deck and it’s off.

I can’t see the bolt head well, too blurry, might be a hex head or Phillips or slotted or whatever.
Vice grips should be able to grab it to remove it.
You might have to bang on that locking ring to get it to rotate.
Penetrating oil will help it unthread more easily.

 

[Slothy]

Alright, thanks for the suggestions, ill give it a shot

 

[Jeff Handy]

You will have to unscrew the sprayer head to get its hose out of there.
Or just cut it.

 

[Slothy]

There are four screws in the large nut under the sink. Loosen them and the large nut will spin-off.

Thats the odd part, there are no screws

 

[Stout Mechanical]

Thats the odd part, there are no screws

Use a basin wrench on that large nut and it should come off. in your one pic looks like someone may have put some silicone or something in it. You can always put an adjustable wrench on the basin wrench for more leverage

 

[sawguy]

It does appear the screws are missing. I believe the silicone STOUT sees might be water leaking through. Basin wrench is what's needed. Grab the triangle 'ears'

 

[Mark.S]

I agree. The bolts may have been removed from the locking ring. Assuming you don’t want to keep or re-use any of it just go at that locking ring. Cut or break it if necessary Once it’s off you’ll be able to pull the faucet out from above

 

[Mitchell-DIY-Guy]

Thats the odd part, there are no screws

Whoever put this in, did it wrong. (I've done MANY of these) There are three set screws (could be two, or four depending on manufacturer) that are supposed to be threaded in at least partially into the large heavy nut prior to install. You are supposed to then, BY HAND ONLY, screw that big nut on to get the faucet in. Then with a nut driver you are supposed to tighten the set screws. The entire purpose of that big nut and the set screws is to PREVENT having to get some big-ass basin wrench or Channellocks in that tight space.

Now you'll have to.

 

[Slothy]

Whoever put this in, did it wrong. (I've done MANY of these) There are three set screws (could be two, or four depending on manufacturer) that are supposed to be threaded in at least partially into the large heavy nut prior to install. You are supposed to then, BY HAND ONLY, screw that big nut on to get the faucet in. Then with a nut driver you are supposed to tighten the set screws. The entire purpose of that big nut and the set screws is to PREVENT having to get some big-ass basin wrench or Channellocks in that tight space.

Now you'll have to.

Rip thanks for the help!