What size/specification boltsare needed for the top 2 bolts attcahing gearbox bellhousing to engine block?

Are all the bolts on the bellhousing the same?

what engine?

i think if i am not mistaken they were they were all the same on mine

1300 x-flow mk2 escort

UNC -- the size I think is 3/8" or 7/16"

chears.