Studs for carb on 1948 Mark IV

What is the thread size for the 2.5" studs holding the carb to the block?
are they Whitworth , BSF, UNF close to 3/8"-24.
Thanks
New member rebuilding carbs on 1948 Mark IV. Studs all damaged need to buy taps & dies
and new studs and nuts.

Virtually everything except the rocker adjustments is BSF.

Peter

Peter,
Thanks so much for the help.
Regards,
Lou

Peter,
Thanks so much for the help.

Lou

Yes they are 3/8" BSF
There is a company, Motalia on the internet that sells BSF studs in Stainless. I don’t know the length you are looking for off hand [ 2 1/2s are shorter than 3 1/2 s] but you could check their website.

Thanks, Ed will check them out.
Regards,
Lou

Can you tell me what is the rocker adjustment thread?

It’s a fine bicycle thread:
https://www.motalia.com/Html/Charts/cycle_chart.html

Peter

5/16” bicycle thread.