[Talonmotorsport]

How often do you think you'll have to take the floor off, is this while your building or when you have finished it? If it's only while your building use cleco's to hold it in place. Rivnut inserts don't always grip like they should if you get it wrong or you snap the thread of the tool trying to tighten it, we used to use a tig to fuse them in place. If you use a pop rivet that is a few mm too long you know when it's tight enough as the pin comes out, just my experience of course.