[HardcoreZ28]

It's a bolt that goes directly into a blind hole in the hub. Panhead type that sits flush with the face of the rotor. No access to the threads. I think first I may try to dremel a groove into it and use a flathead and wrench to get it....if that doesn't work I'll weld a nut on. And if that fails I'll have to try and drill it out without trashing the threads inside the hub.

Something so simple has turned into a project.