Metal Rivnut Into A FRP Board 2

[rc0213]

What are the pros and cons of using a metal rivnut in a FRP board in the ceiling?

I would use that rivnut to screw in a bracket which would hold up a duct.

 

[XR250]

Not sure how you would determine its load capacity. My only experience with them is adding bottle cage mounting bosses on my mountain bike frame.

 

[Ingenuity]

My only experience with them is adding bottle cage mounting bosses on my mountain bike frame.

Hmmm, exactly my limited experience too. I had to remove and replace a broken one on my carbon bike frame a few years back...painful to remove the back of the rivnut from inside the tube, but I could not 'live' with the loose, rattling sound.

 

[phamENG]

I used them to mount fender flares on my old wrangler. Pretty handy. Hanging something over somebody's head? Not so sure...