3 1/2 sport gearbox sprocket retaining nut

[TheOls]

Hi folks,
Does anyone know offhand the size/thread pitch of the above?
Thanks in advance
- Ols

[George 350]

I know it is an M14 nyloc nut, but have no info regarding the pitch.
That said, the Italian motor industry in general weren't/aren't famous for using non standard pitches on their fasteners, so I would expect it to be a 2mm pitch. (1.5mm pitch is the ISO fine)

Hope this is of use,
George

[TheOls]

Thanks for that - I'm away from the bike at the moment and trying to stock up for when I can get in the shed...