I've managed to lose all of the hardware responsible for holding the water pump and water pump housing onto the engine. I need to replaces all of the nuts+lock washers, the 2 short bolts and the long bolt. Does anyone have length and thread specs for the bolts, and thread info for the nuts?

 

I found out that the thread of the studs is M8 x 1.25, so I assume the threading of the bolts are the same.. right? If that's correct, the length of the long bolt is my biggest concern.