After Goodyear rounded off the OEM nuts on my Magnum, I received them as recommended on LXForums.com. The only possible issues are: 1. The conical contact surface is a little smaller in diameter than the OEM nuts, raising concerns about proper clamping force, and 2. I need a second socket in the machine as they are a size smaller than OEM -nuts. no problem if corrected before the next apartment!