Sooner or later they all fall off. Here's FCP Groton's listing:
9447727 Skid Plate/Splash Pan/Protector Plate $25.00 Scan Tech

If you can find any bolts that aren't broken, or extract any of them
you can save yours for a while with a regular M6 screw and a "fender"
washer- a washer with a large diameter but a small center hole. See your
friendly local hardware store. The head of the bolts should be 10mm.
After 10-15 years, it's possible to find ANYTHING jammed in the holes,
as well as 3 or 4 bolts just missing. There are supposed to be 7, one in
each front corner, three across the back, and one up at each side edge.
--
Rob Bareiss, New London CT ::: "Roterande Fläkt Och Drivremmar!"