The chances of finding anyone having that sort of screw in their portofolio are (very) slim to none, and even if they do you'll probably have to by several hundreds of them...
Solutions that may work for you are allthread with a soldered-on nut and cut a slot in it, or make your own.
Joe Pieczynski has done a video on how to single-point (!) such small threads on a lathe.:
