The archive has some discussion on this, with people discussing JC Whitney as a source for Rivet nuts and tool to install them. However, I am unable to locate a METRIC tool in their catalog. Does anyone have a source for a metric rivet nut tool?? While I am asking, anyone know off hand what sizes are used on the DeLorean? I believe there are 2 major sizes. I noticed the ones that hold the washer bottle under the left fender look a bit smaller than the ones in the luggage compartment. Thanks