On a piece of equipment, I have a section of stainless tubing with a blind end welded on with a hole in it, and the person who fabricated it welded a hex nut against the hole on the inside before welding the blind end on so that a bolt can be threaded in. Guess what, the weld holding that nut broke off, and there's no access to the inside of the tube to reattach it.
I need the end to be essentially flat so I can't weld a hex nut on the outside. So what I think I need to do is attach a plate nut, but I'm having a heck of a time finding one in the proper size for the bolt (1/2-20), even McMaster doesn't stock fine thread ones.
Any leads on where to find such a thing or alternatively any other suggestions? Not sure if a rivet nut is quite the right thing here and it's also hard to find them that large.
Thanks!
I need the end to be essentially flat so I can't weld a hex nut on the outside. So what I think I need to do is attach a plate nut, but I'm having a heck of a time finding one in the proper size for the bolt (1/2-20), even McMaster doesn't stock fine thread ones.
Any leads on where to find such a thing or alternatively any other suggestions? Not sure if a rivet nut is quite the right thing here and it's also hard to find them that large.
Thanks!