Exhaust manifold studs and nut kits, These are a an Australian made stud and brass nut and include a 3/8 spring washer.
These studs have an overall length of 47mm.
thread is 3/8 unc both ends
12mm short end
29mm long end
These double threaded studs have a wide range of uses and be used for manifold exhaust flange studs, cylinder head to inlet manifold or exhaust studs on parts that require a 3/8 unc thread around 1 1/2 inches long.