Quoted from wdennie:No crappy plastics ones that strip out.
I've never had a plastic strip out yet.
Personal preference, but I to color match on most of my machines. (especially my Bally's)
https://www.pinballlife.com/6-32-acorn-nut-natural-nylon-colored.html
I have not tried the metal colored nuts yet... bit too high-priced for me.