I made an ugly adapter with some threaded rod, several large nuts and some washers. make sure the nuts are large enough to slip over the inner pieces without touching them.Unfortunately that tool won't work with PlusNuts, but it will work with Rivnuts.
On same page I used the $30 "wrench-driven rivet nut tool" part # 96349A305 for 1/4-20NC Plusnuts. Tool worked fine.I made myself the same tool, installed 10 or 15, but then I got the angle wrong on one, it started spinning, and I had to drill out the plusnut. It was an awkward location, took me about 30 minutes, so then I bought the proper tool from McMaster Carr.
A photo of your setup might be helpful for diagnosis. Which DIY setup are you using? Do you have something acting as a thrust bearing?Whatever I do, it seems the plusnut just spins when I try to tighten it. What am I doing wrong? What can I do to keep it from spinning? Thanks.
Does this tool work for plusnut. Description says rivnut.