Berry, I've used the special nuts in the past (my house also has aluminum wire), but the last time I did some re-wiring, I couldn't find them at either HD or Lowes (where I've purchased them before), and I don't remember ever seeing the Noalox until this last job. So, I'm no licensed electrician, but I'm guessing that the Noalox has replaced the special nuts. But you definitely want to use one or the other. Not long after I bought my house, 20 something years ago, I changed the way our kitchen lights came on (two with one switch, changed to two separate switches) and replaced a pull chain switch in the laundry room to a switch on the wall. We were very lucky. I really shouldn't have been doing it myself, but with just purchasing a home, money was tight. So I did it myself. A few months after, the kitchen fluorescents started giving us trouble to turn on. I went in the attic to check things out and the connections had turned black, along with the box they were in. After telling my brother-in-law, who is an electrician, he looked it over and explained to me about tying copper and aluminum wires together. He said I was lucky I didn't burn the house down. Haven't made that mistake again!!