exhaust donut gasket and studs question

[catch2otwo]

So Im looking to finally fix some exhaust leaks but having a hard time getting a definite answer. Looking for the exhaust gaskets that go between the manifold and the exhaust pipes. Looks like a donut. Also looking for the studs. Looks just like the pic below. If I hop on summit, what size gasket am I looking for? Is there a specific name for these? Anyone know the size of the studs? Thanks!



My manifold looks similar to this. Im dumb and didnt grab the pn off of it this morning.