Is it possible to fix the studs that brek off, or do I need to buy new ones?

 

I just used some windshield trim glue to attach them on. The underhood mat hides the fact there are no studs there and if you ever need to take them off a spatula and some patience takes them back off.

I just ran a squiggly line of glue on the hood and put a dot over all of the holes where the studs went. It works well and stays on over 130....