Hi can anyone help bolt size that connects the slave cylinder mounting to the car

[Richmondpr1]

The bolt has gone that I know there is nothing wrong with the slave cylinder as the clutch is working fine I think bolt has gone and wasn't sure of the correct bolt size etc

 

[tyler2687]

Are you talking about your short shifter piece in the first picture on the gear selector or are you talking about the internal slave on the bellhousing? Either or. The tiny two bolts that are in the shifter peice I do not have either . The person that had my car before me did not install them or they rattled out. I’m pretty sure though they’re very tiny Allen heads. Second the slave bolts on the bell housing is 2 8mm that are pretty short. If you have any questions feel free. I’m on my 3rd trans . I know all about it 🫠