Where can I get kevlar monofilaments?

I need to get a spool of a single Kevlar, nylon, polyester, Vectran HT or Vectran HM fiber.
Does anyone know any suppliers? If I can’t get a single Kevlar fiber on a thread, does anyone sell extremely thin threads on spools of the stuff like >0.05mm?

Also, does anyone know where to get carbon fiber in single filaments? I want high strength (around 4900MPa) something like Hexcel AS4 at least.

About all stuff is spooled in bundles (given as tex or k value) which consists of some 1000 filaments or more.

Are you sure you want 1 filament only? That will be tough.

Ebay has a bunch of kevlar thread in various sizes.

I have a bunch of spools of kevlar 49 tow. 195 den. Few pound spool. TOW, not YARN, and um…if you want actual filaments, you will have to pull each one out yourself, mate.
PM me and we can work out a price. Thinking 60$ including shipping.

As for Carbon. While I do have surplus spools of carbon, they are OLD, and unknown type.