I worked with a machine shop for years
We did some race engine stuff
I seen guys fill in disaster areas on heads with JB weld to be able to continue using heads

For success with epoxy a couple things to remember is a clean surface , cure time and temperature
some times the heat of a regular trouble can speed up the curing process but often most want a 24hr cure

I have read of some using JB in the way this Loctite & Permatex works in that, they put in the epoxy, then coat a bolt with oil, then send it in to form the threads.

Is that what you have seen rexazz2?

Only thing I wondered about that was, what effect strength wise the oil my have reaction wise to all of the epoxy. Was thinking it might mix or have some adverse affect on the JB stuff, an then make it all weak.

Was why I was thinking these kits might be better as I would hope they have formulated the releasing agent not to negatively effect the epoxy.

But was thinking the JB weld is probably the strongest stuff I could use.

Making these choices is hard when you don't know all you need to know.

the directions on the specific package is best to follow

in your case I might be tempted to wrap the threads with a couple wraps of teflon pipe tape , using a finger nail to push it down into the threads

maybe a test with a normal bolt and teflon tape is in order