Is this a metal hood scoop? If so, I think the bolts are tiny, maybe 10-24 thread? There should be clips in the scoop that the bolts go into. On my Coronet most of the bolts go thru one layer of sheet metal. There are a couple of bolts that go thru the support. When they go thru the support you need a small hole in the skin of the hood and then a larger hole in the support so you can get a socket head in there.

IMG_0780 (Large).JPG