You can get the captive nuts to be errmmm... captive using nothing more than a 6mm bolt and a large washer.It doesn't always work as sometimes the captive nut just spins before it starts to grip,but I've done it like this dozens of times,and it probably works about 9 out of 10 times.
Instead of using the rivnut gun, you can do the job with some simple bits like this:
The silver bit isn't threaded internally, it just slips over the bolt. The bolt fits the internal thread of the rivnut.
Before fitting the rivnut to the bolt, you slip a ring spanner over the silver bit.
Then slip on a star washer and screw on the rivnut so that it's head is tight against the star washer.
Slip the rivnut into the mounting hole, use the ring spanner to hold the silver bit still and tighten the bolt head with a second spanner.
The star washer holds the head of the rivnut while the bolt pulls the rivnut so that it expands in the hole. Job done.
Sorry I didn't post this last night, I had to go and look for these bits first and remind myself how it works. Hope that helps.
A forum community dedicated to Volkswagen Mark 4 owners and enthusiasts in the UK. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more for the Golf, Bora, Jetta, Touran, and Scirocco!