Mystery part 69 Dart, what is it?

Steven190 said
It was in the box with the right door window mechanizes. I am not sure what it is. It is a little less than 3/8" wide, so if it is for plywood, it is for some thin boards.

Thanks for the reply's.

3/8 is to small for a roof clip then. Hmmm! Don't recall seeing anything like that in my Barracuda door and the were completley stripped.