what size bolt do I need to screw on ex27 crankshaft

[mdj89]

What size bolt do I need to screw on my ex27 subaru crankshaft to hold the torque converter?

 

[OzFab]

I just gleaned through both the owners manual & the service manual & couldn't find a thing.

One thing I did notice is, every nut & bolt is metric

 

[qtband]

I think it's a 5/16 fine thread