What to use when 2 part epoxy fails

[LynnieLightfoot]

I need to glue some nuts to a base plate but 2 part epoxy has failed twice. Any ideas?

To explain, I am a renter, so I can't wall mount my TV. To get around this problem I've used a monitor arm attached to a desk. The mounting plate for a monitor is smaller than the one for the TV, so I need to join them together. However, as the mounting plate sits flush on the back of the TV, the nuts must stit on top of it, hence the need to glue them.

Loctite Easy Repair worked fine at first, but as the TV needs to be moved into position and then folded back against the wall when not in use, it has failed twice now. I've roughed up the surfaces before glueing, and I'm using a nut with a relatively large surface area. 

Thanks in advance for any advice you can give me.

[Noyade]

Afternoon @LynnieLightfoot 

Sorry - any chance of a photo/s showing the situation?

Cheers.

[AlanM52]

Hi @LynnieLightfoot,

What about Root Nuts.

Drill the correct size holes, insert a nut and use a ball peen hammer to turn over chamfered edge.

As requested please post some photos.

Cheers