Got my 312 stripped apart.
Can anyone here supply me with the correct manifold studs & nuts etc?
When I connect up the exhaust they are likely to break.
Mine are original and very weak. The thread is likely to be American & not a UK thread.
I need 4 as per original. Cash waiting.
Thanks guys.
Picture taken in 1960. Funnily enough it still looks like this! 
1959 Mercury Monterey 312 Y Block. NORFOLK, ENGLAND, UK.