Engine Mount Bolts

I have a Kjet DX engine in my campervan using what I think is the diesel mounts from a JX Engine.

I just noticed one of the bolts is missing!



Are these standard MK1 parts or JX specific? If MK1 does anyone know a part number?

Thanks 

http://www.oemepc.com

You can find part numbers there, which they tell your the size and possibly the pitch.  Grade 8 or 10 replacement bolts will do.