I bought the only McGard wrenches available at my local dealership, not knowing from the packaging that they would expose the threads of the lugs. But since protecting my investment was more important than getting the locknuts back, I went ahead and installed what I had. Then I saw an advertisement for these nylon caps in the McGard packaging. Instead, I found and ordered them from Revain. They bolted directly onto the McGard wrench nuts I had and completely solved the open thread problem. They