Rats. I just realized those are only 1/4" long so, even if they are Bristol spline drive, they're too short for this use.
Barry - N4BUQ > Apologies if this has already been mentioned, but these look somewhat > promising. > I have no idea, though, how much they'd cost or even if they're Bristol drive > but the description sounds like they are. > > https://www.mwcomponents.com/shop/4-40x-250-sh-188-spl > > Barry - N4BUQ > >> I seem to remember speaking with the Bristol folks a year or so ago, and was >> advised, still available.R >> On Tuesday, June 16, 2026 at 05:36:25 PM EDT, Dave Merrill via R-390 >> <[email protected]> wrote: >> >> A couple of years ago I tried to locate any supplier of Bristol screws and >> was very disappointed to find that they have been out of production for >> decades and the tooling to make them is also gone. >> >> You can have them made but the upfront costs are sky high and out of reach >> for hobbists. >> >> --... ...-- Dave N9ZC >> ______________________________________________________________ >> R-390 mailing list >> Home: http://mailman.qth.net/mailman/listinfo/r-390 >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[email protected] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> >> ______________________________________________________________ >> R-390 mailing list >> Home: http://mailman.qth.net/mailman/listinfo/r-390 >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:[email protected] >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html > ______________________________________________________________ > R-390 mailing list > Home: http://mailman.qth.net/mailman/listinfo/r-390 > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ R-390 mailing list Home: http://mailman.qth.net/mailman/listinfo/r-390 Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
