Thread type
Posted: Fri Dec 27, 2024 9:40 pm
Anyone recognize this thread....it isn't NC or NF.
Not 10/24 or 10/32.
Maybe 1/8 BSP!
Definitely not metric.
Not 10/24 or 10/32.
Maybe 1/8 BSP!
Definitely not metric.
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Thread type
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Re: Thread type
Posted: Fri Dec 27, 2024 9:48 pm
would help to know the TPI .. maybe Whitworth but not too sure
Re: Thread type
Posted: Sat Dec 28, 2024 1:13 am
BA thread?
Re: Thread type
Posted: Sat Dec 28, 2024 3:56 am
Re: Thread type
Posted: Sat Dec 28, 2024 5:07 am
Bit of a challenge there without knowing the exact diameters (Major and Minor) but my best guess is 5/32" WW.
Re: Thread type
Posted: Sat Dec 28, 2024 5:37 am
Anything is possible at that time. They had a couple of BA threads on the mini so it’s possible the accessories had them too
The Mk1 horn button retaining screw is BA and some on the door handle. You could try and see if they are compatible
Re: Thread type
Posted: Sat Dec 28, 2024 4:36 pm
Good tip Timmy
Tried the bolt in a couple of horn buttons...BINGO...it matches perfectly.
So, next question....what size is the bolt? 0BA 1BA 2BA???
Re: Thread type
Posted: Sat Dec 28, 2024 6:13 pm
At a guess, without my zeuss book handy, being an frequent BA user and the application, I'd say 2BA
Re: Thread type
Posted: Sat Dec 28, 2024 6:44 pm
Happy seasonal greetings Peter. I agree that it is probably 2 BA which I think is the same as the bulkhead fixings for the speedo cowl. Best wishes for good health in 2025. Catch up soon at Gaydon maybe?
Re: Thread type
Posted: Sat Dec 28, 2024 7:42 pm
They are 2BA360gts wrote: ↑Sat Dec 28, 2024 4:36 pmGood tip Timmy
Tried the bolt in a couple of horn buttons...BINGO...it matches perfectly.
So, next question....what size is the bolt? 0BA 1BA 2BA???
Re: Thread type
Posted: Sat Dec 28, 2024 9:59 pm
could be 3/16 BSF ?