69 Barr Outer Trim to Grille clips, threaded nuts?

missing linc said
Looks like they should have speed nuts.

Does it look to you guys like there is enough “meat” for the speed nuts to grab? or I could JB Weld the studs to fill in the skinny areas of the studs... then thread the speed nuts on?

I’m assuming I would get the 3/16” not 1/8” speed nuts.