STUD Exhaust Manifold Length = 51mm

A05C Series engines use 6 x 23ACC0010 + 6 x 23ACC0011 per engine .

S05# + J05# series engines use 12 x per engine

For N04C series engines , refer below :-
This stud uses a spacer that is 8mm in width for N04C series engines.
Hino 300 + Dutro XKU + XZC + XZU series with N04C series engines , 8 x required for all models up to ->3/2012
Hino 300 XKU + XZC + XZU series with N04C series engines , 6 x required for 3/2012->9/2014 + 2 x 23ACC0011
Hino 300 XKU + XZC + XZU series with N04C series engines , 4 x required for 9/2014-> onwards + 4 x 23ACC0011

Toyota Coaster XZB50 series with N04CTF + N04CUH series engines , 8 x required for all models up to ->3/2012
Toyota Coaster XZB50 series with N04CUH series engines , 6 x required for 3/2012->1/2015 + 2 x 23ACC0011
Toyota Coaster XZB50 + XZB70 series with N04CUH series engines , 4 x required for 1/2015-> onwards + 4 x 23ACC0011

Add on nuts 23ACC0015