Metal Bonding

[HEEP]

Alright guys, I need something that will bond two pieces of metal together in a spot that I can not weld. It is for a body mount. I have cut open a channel where GM did not put a nut for my year car. I want to make sure this mount is there and when I take the car back apart for final paint/powder, I need that nut captured in that spot. I have already made the captures, I just cant get any welder gun or torch in the area.

Of course, JB Weld has come to mind, but I am just wondering is there something better?

Thanks,
HEEP

[WSSix]

what ratman said or 3M makes some ridiculously strong bonding agents. They might be cost prohibitive though for just a few capture nuts.

[Rick D]

3M panel bond may work? Part number is 8115, but you need the 3M gun to use it so that does add to the cost. If you know someone at a body shop they should have a gun you could use?

[jimbo]

The 3M panel bond would probably break loose after the initial tightening.
It is not made to withstand torque/twisting.

[INTMD8]

Maybe I'm not picturing this correctly but couldn't you weld a piece of flat stock to the nut so it couldn't rotate and it could just float around in there until you tightened it?

Or, if you have a housing for a captured nut mark it's perimeter on the underside of the frame and drill a few holes that you can fill with spot welds from underneath.

[INTMD8]

if he cant remove it , he might hear that thing rattling around for ever

I think I would need a picture to better visualize what's going on.

[HEEP]

Guys, thanks for the replies. I've been working on the honey doo list and only getting time in the garage while it rains. Here is what I made and where is goes. I finally got the mig in far enough to get some sort of weld on it. It is holding. I've got to do the other side tomorrow.

http://i115.photobucket.com/albums/n306/HEEP_2006/IMG_0987_zps4cd4a685.jpg (http://s115.photobucket.com/user/HEEP_2006/media/IMG_0987_zps4cd4a685.jpg.html)

It's going in here. This is the channel under the body where the crossmember for the upper control arms mount.
http://i115.photobucket.com/albums/n306/HEEP_2006/IMG_0988_zpsf79e5829.jpg (http://s115.photobucket.com/user/HEEP_2006/media/IMG_0988_zpsf79e5829.jpg.html)

HEEP

[renegade6]

Couldn't you drill a hole in the bottom of the rocker and do a rosette weld to hold the cage nut in?