LOL Mick ... yes it appears I am... even in the Mancave it seems !!
Thanks for the link Pete.... I have sent my request so we'll see what happens.
Okay then... here it is:
Rattle gun on 10mm bolt = 1; Camshaft lug = 0.
(it was one of those ..'why the faawk was I using my rattle gun then' moments)