67 antenna question?

I couldn't find an antenna delete plate so have one I made to get me by...

Simple hardware store parts from the plumbing aisle...

Found a chrome sink stopper in the plumbing repair parts aisle, the kind that has a threaded stud on the back.

Then found two flexible rubber washers with a diameter slightly larger than the stopper diameter in the hardware aisle drawers.

Last found a wing nut that has a flat bottom and is wide enough to supply holding support to the rubber washer.

I just put the two rubber washers on the stud and ran the wing nut on the back. The stud tends to be long which is good because it allows you to tip it and the lower rubber washer into the hole in the fender and then spin the stopper until the wing nut snugs the assembly together finger tight.