9/16in 8740 Black Oxide 12-pt Nut Kit

9/16in 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

these knurls cut deep into the bolt material

They run-in straight and true

so that’s why ARP came up with these super tough bolts

A “must” for any serious engine builder

enabling the sleeve to float

Finish 2: Black

you will note that gaskets and cylinder headsliterally glide into position and are perfectly aligned – somethingthat won’t happen with inferior quality head studs

To be used with ARP’s patentedPerma-Loc™ adjusters

That’s why ARP developed the Wave-Loc design that features symmetrical waves and has an effective interference range of

We highly recommend using a stretch gauge when installingrod bolts and other fasteners where it is possible to measure thelength of the bolt after tightening

It’s the fastener of choice

000 psi gems