Exhaust/inlet manifold studs

Hi everyone, just ordered a new exhaust manifold from Paddock and it doesn't come with the long studs that fix the exhaust manifold to the inlet manifold (they don't sell them separately either as far as I can tell). The old ones are pretty knackered so re-using them is out of the question.
Does anyone know the exact dimensions of these studs so I can try to find them somewhere else?
Cheers.

Not sure how helpful this is depending on your location but I got some from Deep South Land Rovers in West Sussex.

Thanks mate, unfortunately I'm in Norfolk, but I'll maybe give them a ring and see if they'd post some.
Cheers.

I'm sure I got mine from paddocks, ring them up and ask them.