EKP buy in their cap heads.
My source tells me that the last remaining maker of BA capheads has stopped doing them thats why I said they will become hard to get in any sizes as stocks run out.
Could use a long M3 that has a section of unthreaded shank and cut a 5BA thread on it, provided you did not go too big with your tapping drill you should get a decent thread engagement
Edited By JasonB on 02/04/2015 20:07:56