attaching the front grille molding strips on 1968 Shelby

[JWH]

Moving to the front of our GT350 and the front molding -- I have found a set of clips to attach the front grille molding from Branda:
http://www.cobranda.com/grmoatclset.html

What hardware was used by the factory to attach these clips? 
Thanks
Jeff

[Coralsnake]

There is a metal sleeve the branda clip pushes into. The original clips were different dimensions and green in color

[68blk500c]

Sometimes referred to as a barrel clip/nut.

[68blk500c]

By the way, those trim clips from Branda.......originals did not have the white cushion donuts, if you want a correct installation look.

[JWH]

I do recall the barrel clips now from a car I worked on long ago, thanks the replies.
Jeff