I bought a number of different offering from clipsandfasterners.com trying to get the right one for those rear side marker lamps. Ultimately, I wasnt happy with any of what I got, but did make them work.
Why was I not happy, The clip itself was very loose fitting in the hole, or far too tight and did not fit. None of the aftermarket clips i bought from them had a little barb to allow the fastener to sort of click into the body before you insert the screw into it.
Beyond that, the screw hole openings were too wide. So when you would screw in the mounting screw, the tabs did not spread enough to allow the fastener to grab and hold the light tight to the body...
I believe, that I finally ended up with ones a little too large for the hole and carefully cut them with a razor blade so they would push tightly into the body and stay in place.
I believe I can post up the part #'s of what I tried to use.
I also bought bigger ones for the grill and headlight bezels. Same trick applied to those.