It comes in handy when you need good nuts.
These grip better and are tougher than the stock nuts on most guitars. If you have a few pots you want to use that don't have enough nuts to adjust the pots' height in a pickguard, this will fix that problem. Good to have handy.
I use the 3/8' x 32 nuts and they far surpass the nuts that come on CTS pots (and Fender guitars). I buy them by the 100's !
Fits well in the pot
But these are nice nuts. I needed a bunch for a project and these fit the bill nicely. Not the really thick nuts, but they work well.