Black oxide nynuts and capscrews ?

I’ve done a little poking around on a whim seeing if it’s possible to get black oxide nynuts and the ones I’m finding are either ridiculously priced, available in ridiculous quantities, or both- LOL. Anyone sourced these things in price/qty suitable for cheap tight fisted people ?

Next question - I’ve got a pile of 6-32 black oxide capscrews- has anyone built a machine with these ? Wondering if they work as well as the pan head machine screws or if the smaller bearing surface under the head tends to crush into the pla surface…guess washers could be used.

Just some random thoughts as I read the forum here…



Looking at my machine, I can’t think of anything that might pose problems for cap heads other than the tool holder - the taller heads might interfere with the mount.