NEW 1973 Duster Taillight bezels

I bought a new set last year for my Duster, After removing the original twist nuts that mount the housings and bezels into place, I discovered that the old twist nuts would not fit the new studs on the new Bezels. I needed to get a new set of twist nuts to attach the bezels/housings to my car. The studs on the new set were actually bigger and I needed new twist nuts