Exhaust Bolts 3.0

[1v6pony]

I need to know what the bolts are for the exhaust pipe to manifold flange.. I have tried all different sizes in my bin and can not find the right ones, Does anyone know metric?,sae? corase or fine thread and size...
Thanks Brad

 

[Original_Ranger84]

i would say it is a 10mm fine thread bolt and 15mm head. but hard to say