kick starter nut

do you hapen to have a tap and die set with a metric thread pitch guage? or a set of calipers? metric or std will work... if youi have standard calipers take your OD measurement time 25.4 and youi'll get the size... once you have the size there are only a few common metric pitches per size.. i just finished up doing a broken kicker assembley spring for a customer 2 days ago. or i coulda helped you out with an exact figure
 
^^ you sure about that?

And I have multiple tap and die sets however none of them have a thread gauge:/