Cuda grille - bolt size

[soundcontrol]

What are the size for the small bolts that holds the grille on a Cuda? (Think the head is 3/8"), and are they UNC or UNF?
I can't find them anywhere here. I believe it's the same size as the bolts that holds the dashboard thru the upper vents.

[DeathProofCuda]

12-24.  Overall length is 1".  And you are correct, head is 3/8".

http://www.autometaldirect.com/southwest-reproductions-grille-hardware-kit-70-barracuda-p-8610.html

[soundcontrol]

Thanks!
Thats why I can't find any, so there is no name for screws below 1/4" in Inch-Fractions.
Googled 12-24 and came up with this:

The number "12" is used as a size designator with no numerical meaning. "24" references the 24 threads per inch. You can identify a 12-24 screw by measuring the diameter with a ruler at slightly less than 7/32 inches (5.6mm).

Now I can continue searching over here.