Exhaust to Manifold Bolts?

What are y'all using for the 3 bolts that attach the front of
the exhaust pipe to the manifold? Mine are in need of
replacement. Seems like stainless will be too brittle,
especially with the heat, and steel will rust and weaken.

I know I have one broken bolt (will have to remove the
manifold and easy(sic!)-out the remainder. Don't want
to have to do this again. What are the options?

thanks,

chuckC (ShiftKey intactus)