Abd here's a couple of photos of the bad Rivnut... looks as though it pulled through somehow. I figure it wasn't installed properly in the first place. There shouldn't be enough force to pull the Rivnut through that hole!
24 Super 3 23 Super 3 21 M3W 15 M3W 05 V6 Roadster 68 MGB GT 3.9L V8 67 MM 1000 Tourer