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Lucas 9H backet screw thread
Posted: Mon Jan 18, 2021 9:58 pm
by Charlynsane
Hello Guys
I finally found a 10/63 dated 9h hornfor my 997 Cooper
Unfortunately the screw that holds the horn on the bracket is missing,
I enclosed some pictures for reference
Does anyone know the original part number? or maybe a replacement part?
Thank you for your help
Re: Lucas 9H backet screw thread
Posted: Tue Jan 19, 2021 11:28 am
by Peter Laidler
Just to start the ball rolling I'd say that it looked like an old BS-Whitworth. A firm favourite of early Lucas.
Re: Lucas 9H backet screw thread
Posted: Tue Jan 19, 2021 1:05 pm
by Charlynsane
Hello Peter,
Thank you for your help
Here some informations on the MG forum
Thread: The screw is 5/16 X 7/8" with a 12 thread.
FYI
https://www.mgexp.com/forum/mgb-and-gt- ... n.1566062/
Does anyone know where I could find one
Re: Lucas 9H backet screw thread
Posted: Tue Jan 19, 2021 1:12 pm
by GraemeC
5/16 BSW is 18tpi so no go there
Re: Lucas 9H backet screw thread
Posted: Tue Jan 19, 2021 4:37 pm
by Ronnie
It looks a bit like a big self tapper like the OE supplied with the Scottish sump guard.
https://www.espares.co.uk/product/es170 ... 20Products Shown as example only
Re: Lucas 9H backet screw thread
Posted: Tue Jan 19, 2021 5:44 pm
by goff
Would this one do ??? i can measure it tomorrow for you , looks same as yours thread wise.
Re: Lucas 9H backet screw thread
Posted: Tue Jan 19, 2021 7:01 pm
by Charlynsane
Hello Guys
Looks good!! It may be a self tapper I don't received my horn yet so I can't mesure yet
