In other news:
Came to fit the 'new' wheel, and discovered the screw was sheared-off almost level with the end of the axle.
SO,
Thougths on how to get it out? - It appears to be 'loctited' / glued in..
Not enough to get a grip on.
I only have 'basic' engineering tools (Clarkson 16oz. for example!)..
Have drills. No taps. No stud extractors (even if there was one small enough?).
Have thought of trying to drill a small hole to the edge of screw (possibly into edge of hole as well) then trying to 'tap / drift' it round, as I might attempt for something a lot bigger.
Also wondered about freezing the axle, then heating it with hot-air gun, to see if I can 'crack' the gunk holding the thread??
Ideas??