Does anyone know what size the stud is on the engine side of the power steering pump bracket on a 2001?

Repairing the seal between the pumps and discovered this stud was missing (bracket was hanging loose). Was also missing a nut that holds the pumps together.

 

In case anyone needs the measurement in the future, it's a M8-1.25. I used a 20mm long stud (since that's all I could find), but it probably only needs a 10 or 15 since I had to use a washer to keep it from bottoming out.