Body mouldings and trim pieces are held on by a variety of small hardware that are easy to misplace or break whenever they're tampered with. Sometimes, you have to resort to using zip-ties to reinstall certain pieces, but that was before you found the items available in this section.
999-591-699-01-M100
Speed Nut/Clip (B4.8) for Underbody Coverings - 928 (1987-95), Each Brand: Genuine Porsche [Photo]