On Jun 23, 4:22*pm, mike wrote:
I have an old Dayton 2Z543 hand held 115V spot welder.
The tips screw into the tongs, but the threads are stripped.

I rarely use it, so the "fix" doesn't have to be production quality.

Ideas?

Thanks, mike

OK, how about drilling holes in the holder and tap them to take grub
screws - if you hold it from one side, you would have a fair bit of
contact area. Wrap the old loose workpieces with copper foil to shim
it out a bit. I reckon drill/tap (coarse thread for soft material, is
that right) at 3 places should be pretty bulletproof - dont know how
often you need to dismantle it, hopefully not often.

No idea if it would work, it would be fine here on my Home Planet,
dont know about yours sometimes....

Andrew VK3BFA.