Edit2: So if you have a tacoma screw near you I would highly recommend going as it is about half the price of online. if you are ordering online here are a couple links

Screws https://mcmaster.com/92000A012/

Split ring lock washers https://www.mcmaster.com/92148A050

external tooth lock washers https://www.mcmaster.com/97985A111

Edit: So I just got back from Tacoma screw for those of don't know is a really awesome hardware store up in the Tacoma Seattle area. Tried the m2 x 0.4mm screw on multiple Uhlmann body cords, the absolute fencing master, and some random clips I had around. They all fit, held, and didn't have to be forced. So either they have updated the thread pitch or they're so close it doesn't matter.

So I know that the small screw for clips on 2 prong body is an m2 with a 0.25mm thread pitch or m2 x 0.25mm. Annoyingly the more common thread pitch is 0.4mm or m2 x 0.4mm. The only way to get the correct thread pitch is custom order them. I have a request out for a minimum order of 1000. I get enough request for them at the armory table that I figure not the worst thing to go buy depending on the cost.

Anyone have a source for them not custom order or potentially want in on an order after I get pricing info?