Hey Pete...at least this guy tells you it's for "hubgears"...Sturmey Archer I presume? Usually you get nothing.
Also, there were other proprietary threadings with British bikes...Raleigh has 24 tpi...some bikes used Whitworth. I've got two British Hub (BH) fixed hubs that appear to be similar era's...they have different threads. I've got a few doz'n pairs of wingnuts that include several threadings and dimensions. Makes you crazy sometimes. I think I've got some english threaded Hurets but I won't swear to it..
Warren Young Toronto
>Forgive a dumb question.
>It seems everytime I see wingnuts for sale there is never any mention of
>threading.
>It seems the likely choices would be: English - 5/16" x 26tpi and 3/8" x
>26tpi
> French - 8mm x 26tpi
>and 9.5mm x 26tpi
> Campy - 9mm x 26tpi
>and 10mm x 26tpi
>
>So what to do if trying to buy and you can't check on your own axle?
>Assume Huret is French and GB is English threaded?
>
>Pete Geurds
>Douglassville, PA