[R-390] Weird looking set screws

[Barry]

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
>    <r-390 at mailman.qth.net> 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
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