Sturmey Archer axle nut — availability outside UK?

[rogerzilla]

I do them to only 20Nm (SA say 25Nm).  25Nm is perilously close to stripping the threads of genuine SA nuts, which are quite soft.  Aftermarket 13/32" nuts may be much harder.  It goes without saying that the threads must be clean and lubricated.  25Nm will certainly strip, or at least damage, a gritty nut.

[LittleWheelsandBig]

I’ve got some wanky aftermarket Ti Workshop nuts on my 6sp Brompton, mostly because the originals were pretty rusty. I have no idea whether the Ti threads are stronger than those on genuine SA nuts.