Heathcliff wrote:
....
I've about decided to braze a nut in the end of the EMT, sand a flat on
the surface of the ball and drill a slightly-too-small hole all the way
thru it for a 3/8" carriage bolt. The flat will be on the top and it's
so the head of the carriage bolt won't stick up.
....
I think you are better off with the original idea of drilling a blind
hole and using epoxy to set the conduit in the hole. With the brazed
nut, the nut is the only attachment point and shear forces will be
concentrated there. ...
....

If actually brazes the nut, the weld will be nearly as strong (if not
stronger) than the wall of the EMT will be against collapse.

As a suggestion, if you go this route, why not use a coupling nut rather
than just an ordinary hex nut -- this would provide a much longer solid
section at the top of the EMT.

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