[VHFcontesting] retainer rings for ant elements

[Ralph Matheny K8RYU]

Doing a bit of antenna construction and......

I have quite a few of the insulators for thru-the boom
mounting of antenna elements, but I need the stainless
steel retainer rings for 3/16 (.188) aluminum rod.

Anybody know of a source??  Got some at Lowes, but they
are not stainless, and won't last long I'm sure.

Thanks

de K8RYU