dont get chrome, they split after a few wheel changes unless you can get a nylon socket, still when you take them to get the tyres changed they need to be pretty gentle in the shop. Mine rusted after about 3 months and the chrome flaked off, they were triple chromed.
Hey Alex,,,,,,,,, Great shout,, I never new there were so many, now I`m completely lost. I like the idea of an internal Hex wheel bolt set though. You could put anything in there you wanted as a cover ! Thanks mate,