brake pipe couplings, what size?

[Jay18]

so im replacing all my barake pipe with copper pipe and i will need to replace the fittings so does anyone know the size of the fittings i need? i hear they are M12 x 1mm, is this correct?....

and another quick question, would i be able to bolt in a sj413 brake servo on my sj410? and how would i go about the vacumm pipe?

any help would be great....