Hello -
(Christ, here are the T-Nuts)
This is the v2.0 attachment system used in post #44. I've gone from 10 parts per lug nut (not including the tray itself) down to 3 :
The only problem is that the plumbing washer doesn't have anything to "hang" off of when I am attaching the serving tray. I tried to glue it on, but it still falls off. I am in the process of replacing the plumbing washer with a rubber "furniture foot". It has the benefit of being able to tightly wrap over the faux plastic lug-nut while "filling the gap" and providing cushioning equal to the plumbing washer.
Keep in mind that the bolt has a "truss head" similar to this :
This is the widest/flattest bolt I could find. Without this, I would lean towards a big flat washer. It's 3/4" length is critical for my application because any longer would push into contact with the real lug nut and no longer be flush.
In the above picture I use a 2" truss head bolt to mount the T-Nut. This is because I am using no glue (except for the plumbing washer, which is being phased out). I use the bolt to hold the T-nut in place and "true" to the hole in the plastic lug nut as I screw it onto the real lug nut.
CarloSW2