Brain fart...trying to install new studs on dual scoops

factory studs are #10 and 1 1/8 long total. original scoops are fiberglass. I have some that the stud fell out, so I will either put fiberglass back in the hole and drill a pilot hole to start them. I can send photos of original parts if that helps. [email protected] or 8604168434 call/text just remember I am 3 hours ahead of you in CT