Hello. I recently purchased a 89 G20 Sport Van with a conversion van top on it. I am sure I am not describing it correctly. Anyways there is a metal ring around the fiberglass top. It contains a ton of screw, I’m guessing that is what adheres the fiberglass to the actual metal of the van.

My question is, based upon the style of trim, it had some sort of cover that snapped in which would cover the bolts.

Does anyone know the official name and if possible where I can order a replacement?