Motherboard to case holder adhesive?

Ok I forgot the name for them but the screws the are on the mobo screw into the little copper holders that are in the case. If you understood what I said continue:

Some of the holes are stripped and the holder pin wont stay in. I sanded the part around the hole for a good hold, but I am wondering what adhesive to use? Jb weld, supper glue, soder (sp), or metal mastic (sp?) anyone know what would hold it best? I currently can't find the jb weld or I would have tryed it 1st. I might buy some tomorrow but I wanted to make sure.

You could take a punch, nail, etc.. and tap the holes a bit tighter from the backside of the mobo tray. Then thread a case screw in to make the threads again.

Of just JB-Weld it