My bad I read it wrong, thought you said hub won't go back on.If the nut doesn't go back on you can stick on any nut (that fits and tightens obviously) as a temporary measure. Mine had a normal nut on there until I found out and swapped it.
Coolio, Nope i've just left it. Thought i might of had the right size tap but no luck!Where did you get the bolt from, B&Q ect?