25 Metric Jack Nuts M6-1.0 Thread Zinc Plated For GM 1635218, 10014363

My only issue with these is that the flange is flat and round. I needed them to install a spoiler and the problem was there was nothing for me to get a bite on and hold it in place while I screwed in the bolt. I wound up having to grind two sides of the circle flat so that I could use a small flat half inch wrench, so just keep that in mind. Other than that it is what it is.

Good price for quality parts that are near impossible to find in any local hardware or auto parts store. Exactly what I needed to help expand overlanding functionality to my late model Ford while still using factor sized fittings and common tools.

They worked great for what I needed, but there were no installation instructions. Search for how to install these without a tool (unfortunately Amazon doesnt allow me to include a link outside of their empire). To summarize installation: Take a bolt of the proper diameter and put on a large washer of the proper diameter. Take a nut that is too big; big enough to fit around the bolt without engaging any threads (yes, this is not a mistake). Then put on a star lock washer (with sharp edges to grip both the too large nut and the jack nut you are trying to install. (I used a flanged nut with integral serrations on the flat surface instead of nut and star washer). Then thread on the jack nut, snug it up, and insert this all in the hole. Put an open end wrench on the nut, and tighten the bolt. The star lock washer will provide enough friction to keep the jack nut from rotating. Dont over-tighten.

Good product