Mounting a pHat or I guess they now call them Mini Hat to a full sized Pi can be a bit of a pain. Only two of the mounting holes line up? Two stand offs on the GPIO Header may be enough, all depends on how hard you have to push to make those teeny tiny buttons work?
Pimoroni also have these.
I just wish they had more nuts in the pack.
I have one of the original pHat Beat based Pirate radios. I added mini arcade buttons to make using it with my nubby fingers easier, lol.