GARTHWILSON wrote: Jeff and I talked about this a few years ago Wow -- I had utterly forgotten! 
Looking at that diagram, there are some details I would consider changing. The nuts do need to be restrained from turning, but soldering each one to the board seems suboptimal due to the weak-ish joint that results and especially because of the rather large chunk of board area that's consumed by the nut and the surrounding solder joint. That entire area is prevented from having traces on its surface, so from a routing perspective I'd prefer a scheme that has no excluded area other than the bolt hole.
So, instead of nuts soldered to the board, I would consider using a short length of bicycle spoke or similar material which perhaps by brazing would have nut #1 and nut #2 attached at its ends. This is sufficient to restrain the nuts from turning, and we use another such assembly to link nut #3 to nut #4. Or, similarly, each of the two nut-and-spoke-and-nut assemblies could be replaced by a piece of 1/4" by 1/4" metal bar, drilled and tapped at each end. (Or make the bar out of nylon, or even have it 3D-printed.)
Optionally, you could even attach the halves and create just one rigid assembly that includes all four of the threaded holes. Done properly, this'd mean every bolt is assured of being perpendicular to the surface, which means it doesn't necessarily need to be sharpened to a point nor have a guide hole to receive that point. Also optional is the use of thumb screws, as opposed to a more ordinary screw/bolt.
-- Jeff
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12020-single-dual-row-solder-pin-tails-collet-sock-527096.pdf [410.91 KiB]
