Carter BB bolt size - anyone know?

[Chris-R]

Trying to put my carb back together having finally solved a dashpot problem, and the four bolts holding the top of the float bowl have mysteriously gone awol... does anyone know what size they are? Thanks in advance!
 

[Sam Buchanan]

Those are #12 which is not a common size these days. I couldn't find any locally so ordered from McMaster Carr.

 

https://www.mcmaster.com/products/screws/thread-size~12-24/

[Chris-R]

1 hour ago, Sam Buchanan said:

Those are #12 which is not a common size these days. I couldn't find any locally so ordered from McMaster Carr.

 

https://www.mcmaster.com/products/screws/thread-size~12-24/

Hi Sam - thanks very much indeed. I'm in the UK so does this look correct from the sizing point of view? I can't actually find anything described as '#12'...
https://www.tcfixings.co.uk/product/12-24-unc-x-12-philips-pan-machine-screw-bzp/16874
(And any thoughts on material choice/compatibility? There seem to be mostly stainless and zinc plated options... I'm not sure what the carb housing is cast from!) 

[Sam Buchanan]

12-24 is #12. Zinc plated steel will be less likely to be damaged by a screwdriver than softer stainless.

[Chris-R]

Thanks Sam - much appreciated.