Well there's your problem

[jfa.series1]

The original rivets for the rear finisher or facia are smaller than those used on the interior. While I haven't actually measured them, I'd say they are about 2/3 the dia. of interior rivets, 6 are req'd. I have not come across a source for the smaller ones, they may be NLA. I suspect interior rivets will work fine as long as you are not going for a concourse judging.

Jim

[psdenno]

Harbor Freight has them, too. Slightly larger than original, but way less expensive.

How do the Harbor Freight ones fit?

Snugly - depends on how the panel holes may have stretched or been reamed. You may have to slightly enlarge some holes with a small round file if too tight a squeeze. But, the price is right - about 10 cents per rivet! They come in a plastic box of 20 and are called POM Rivets. Size 5mm x 15.8mm

Dennis