NOTE: There is another popular clip for GM that looks like this one. If your ordering these, and you have a sample - then measure your sample. If your clip is just under 1" long then these are not the ones you want. These are basically only 3/4" long and will not work with your moldings. The ones you need are not available any more (discontinued).
Here is the manufacturer description for the ones we have on this site:
Plastic Moulding Retainer
Hole: 1/2 x 7/32"
Used on Various Mouldings
GM '62- 66