Sounds like it worked out. But if not, make sure you can obtain a replacement rivnut, I don't know if aluminum or stainless steel, and remove the old rivnut; You would use a longer bolt, then *gently* push or tap on the bolt (don't dent the frame) to elongate the back flange on the rivnut (the reverse of installation), until it can be pulled out easily with the same bolt. Then install a new rivnut. Rivnuts have splines so can be installed in a press fit to keep from rotating as you turn the bolt to expand the back flange, however if the hole is too large for that, then you'll want to install the rivnut with a tool that screws into the threads then pulls directly outward to expand the back flange.