Terry,
I have never seen any listed like you want, but I know a person that once took his and I think he used some small plastic foot holders like you get to put the feet of tables on. He first took the back part of the switch and groved the edges of the plastic, then cut out the centers of the plastic foot holders to make rings out of them. He had to leave plenty of slack as the ring has to go on before the wires, but once he got it on the could tighten them up from behind and just the switch was in front. But without the serrated nut on the front it didn't look right so he put it on to cover the threads and just finger tightened it. I personally like the use of the serrated nut with a small washers better.
Ron
