5/16in 8740 Black Oxide 12-pt Nut Kit

5/16in 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

the compact 12-point inut lets you easily slip a socket close to the pipe

Special ARP Pro Series NASCAR type stud kits have one of the studs drilled to facilitate sealing the carburetor in the engine by race officials

Any increases in combustion pressure can lead to problems like blown head gaskets or catastrophic engine failure

heat-treated in-house to 190

ARP has you covered with our 180

and assures optimumengine sealing

the adjuster body is heat-treated all the way through (not just case hardened)

There are many important reasons to use ARP main stud kits

Not to be used with OEM-style

ARP sprint car drive pins feature a broached hex for ease of installation and proper pre-load while the rounded end facilitates quick

when the material iseasier to machine)

but the results are well worth the extra effort