Exhaust flange stud

[HoldenFE]

I have snapped the stud when tightening up the exhaust pipe to the manifold on the grey motor.
I have tried various exhaust shops in the Dandenong area, Rare Spare etc with no luck.
The stud has a coarse thread that screws into the base of the manifold and a fine thread where the exhaust flange and pipe bolts onto the stud.
Does anyone know where l can purchase one please?

[REDMR2RED]

PM Sent

[zulu]

From memory I think later model holden  exhaust manifold studs fit although the end that goes into the manifold is a thread or 2 short of the of the depth required  but still ok.