GP/DL Exhaust bolt threads?

[LambDL150]

I have successfully managed to lose the exhaust mounting bolts for the clubman, on my DL150. The one on the underside appears to be M8, but I'm not sure of the thread on the larger 2 bolts that secure the 90 degree flange, and the small one on the tail pipe?

[vegansydney]

Manifold ones are M7 as standard.

[Adam_Winstone]

The 2 main bracket bolts are M8, the tail pipe 1 is the same M6 as the rest of the chaincase threads.

[LambDL150]

Thanks for your advice Gents. However the main bracket is bigger than M8, and the tail pipe bigger than M6. I'm guessing that maybe they were both stripped and re-tapped bigger at some point, with as yet unknown threads?

[Adam_Winstone]

^.... very common failure/repair points.