72 Demon vinyl trim

just added a half vinyl top to my 74 duster, ordered clips off ebay, they were 25 in a bag, and small screws theaded only part way, drilled holes and put screws in, then after primer and paint ,all you see is top of screw, looks like studs, put on plastic clips, and if needed you can loosen or tighten them, i had adjusted mine b4 primer and paint, and allowed the plastic clip to have a little play, after paint and primer , out of 8, i had to loosen 1 about 1/2 turn to get clip on.