40 lug nuts
I'm still really happy with these, and definitely recommend 1A Auto for anyone looking for 08 style mirrors. The only thing I can add to this write up is to encourage folks to check the fit of the mirror caps. Mine weren't as snug as I'd like so I used some Loctite Flexible Adhesive to keep them in place. It's like high grade rubber cement -- don't go overboard with it and you can still get the caps off if needed.