Set of six (6) high-spec ARP stainless studs and 12 point nuts for the ultimate quality in manifold studs. You can't buy hardware store stainless to this spec, and with quality ARP fittings, you won't spend a Saturday having to remove a broken stud from your head. If the high-spec of the ARP kit is not required, we also offer a standard grade stainless set, see SEN0455E.