1510D stub axle thread

[r600jrw-HT]

Hello from Scotland!

I am overhauling my 1510D. So far so good.

I am just about to re build the front axle and I have misplaced one of the lock nuts for the stub axles.
I still have the second one but I cannot source a spare anywhere.
The thread is strange (for the UK!).
Can anyone advise what the stub axle thread is please so I can just purchase a generic lock nut online?

Thanks for any help

Jamie

 

[HoyeTractor-HT]

The thread is going to be an M25 but I do not have a nut or spindle here to measure the thread pitch. I think the M25 thread has 3 pitch options.