5/8in 8740 Black Oxide 12-pt Nut Kit

5/8in 8740 Black Oxide 12-pt Nut KitAvailable in a variety of sizes to suit your needs, all ARP 12 point nuts are constructed from 8740 chrome moly steel or ARP Stainless, and meet ARPs highest standards of quality. Rated at 180,000 psi tensile strength, ARP 12 point nuts are manufactured in thick wall versions for optimum strength and rigidity and thin wall versions for applications with limited space requirements. All 8740 chrome moly steel nuts are black oxide finished and all ARP

as well as protecting the threads in your engine block

Studs and bolts come either black oxide chrome moly or polished ARP Stainless

All 8740 chrome moly steel nuts are black oxide finished and all ARP Stainless nuts are polished to a briliant luster

The ARP Stainless material is not affected by corrosion or extreme heat

Available in black oxide finish 8740 chrome moly or polished stainless steel with hex or 12-point nuts

000 psi tensile strength material where noted

Most applications have undercut short bolts that can help eliminate head gasket failures through providing more “stretch” to compensate for theadditional compression of gaskets

Kits come with hardened parallel-ground washers

These features combine to enable ARP shafts to handle the added torque requirements of increased capacity oil pumps or heavy viscosity lubricants

or using a spacer for clearance

Choice of conventional hex or space-saving 12-point nuts

when the material iseasier to machine)