Lug nuts seized, they have caps!!

a little over two years ago I replaced my steel, rusting, trailer wheels with new aluminum wheels. The lug nuts were rusting too, so I bought the good ones (I thought) that were stainless steel. I had a blowout while on a trip and when I tried to take the nuts off one of them was very tight. I put a pipe over my breaker bar to make a long lever and the nut stripped (I thought). After many tries I finally pounded a smaller socket on the nut with a hammer and got the nut off. Upon inspecting the nut I was surprised to realized the nuts had a cap over the nut and it was the cap that was sliding over the nut. I looked at the rest of the nuts and the caps were all loose. I am posting this for you information,,take a look at your lug nuts the next time you take yours off. You do not want to be put in the same situation I was. I think I was very lucky to be able to get that nut off. Get solid nuts.

I do have a question. Does anyone know of a website that has good prices on good nuts? I need 48 of them.