I have used Lockhart-Phillips anodized aluminum sprocket nuts on two different bikes with no problemos. Had gold ones on the ZZR 12. Got some blue ones for the 14.
At the risk of being bombarded with a shit storm, I also have to admit that I never use a torque wrench on anything other than engine assembly. Every other nut and bolt on a bike gets turned until tight. I've never had anything fall off or break like this, but I did twist a a valve cover bolt off once using a torque wrench, so I'll stick to my "torque it by feel" method. Works for me.
Interesting Hammer - I seem to destroy more nuts and bolts with the torque wrench too! LOL I have a beautiful chrome rear wheel now, and a nice chrome 42 T sprocket, and I am having the cush drive silver met powder coat, and transparent gold over that. I want some kewl nuts to set the whole mess off. Can't decide between red or blue. I wanted to do the swingarm, but can't afford the tool, and don't have the time to make one right now (I have to get my stuff to the powder coat guy so he can tag me with another order and save me some $$$). Thanks for the help.