"toller" wrote

The problem is access; I can just barely touch the nut,
Presumably there is a special tool for this, but what?

I've only put in two kitchen faucets, but ... both of them came
with a special wrench.

Do you happen to have that wrench to measure it? Apparently Moen
has changed their design so I couldn't find anything at HD to try,
but they had a few sizes of wrenches like you describe for about $6
each, so if I knew what size I needed...

Sorry, I looked, but mine is AWOL. Now I'm hoping I didn't toss it with
the bathwater! Good luck ...

JSH