Pacific Fasteners is definitely closed today and I doubt they would have such a screw…
You’d have better luck checking Hackery or Freegeek (or any local PC shop) to see what they may have in their respective screw collections…
I have an assortment of misc computer screws that you are welcome to (was actually thinking of chucking them because I haven’t used em for years)…
Not sure what the Space may have in misc computer screws…