Thru-Deck Fitting Set Screw

[Aaarrgh]

I have dropped the tiniest screw in the universe. It's the one that goes through the side of either half of the body of the fitting, that secures the plastic body of the terminal block to the stainless steel body of the fitting. It must be a 1mm, 2mm, #2 or #3 standard thread.

Does anyone know the size of this tiny stainless screw, and a source?

Otherwise, I'll have to either have to tap the hole to a 3mm, which I have, or order another new fitting.

I've been on my hands and knees in my shop with a flashlight and reading glasses, with no luck. Now I'm (un)screwed!