Triumph Repair: Triumph GT6 Steering column, thread gauge, triumph gt6

Question
What is the thread size for the steering wheel nut.

It appears to be 9/16" - 28TPI, which is double thread count of UNF

Answer
Hi Phil,

It is a 9/16 Whitworth but I don't know what the threads per inch are. You may have to get a thread gauge to find out. Sorry, I don't have one to measure and I don't remember if I ever even checked one.

Maybe some one reading this can tell us.

Howard