Technical Chrome wheel lug hole plugs

I have seen on wheels at shows and am looking for chrome lug hole plugs for duel pattern wheels. Cal Custom and Mr. Gasket both have them but they are to large to fit a steel wheel, 11/16ths. The standard hole on a steel wheel measures .570 for a 1/2 20 lug nut. Any info will be appreciated.

 

Go to a hardware store like Ace or the like. They sell them for plugging other things but they will work and are cheap.