7/16in 8740 Black Oxide 12-pt Nut Kit

7/16in 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

are stronger and ratedat 190

which requires less energy to operate

positive wheel location

the threads are machined exactly perpendicular to the bottom of the adjuster

These materials are primarily used in connecting rods where extremely high loads

Specially drilled “NASCAR” models are available for those who wish to safety wire their header bolts to prevent loosening

These premium grade bolt and stud kits are engineered to properly engage the engine block threads and resist loosening

you may choose betweenconventional hex style or the space-saving 12-point nuts

all ARP main bolts feature a reduced renching head

Typical tensile strength is 260

Both are nominally rated at 180

Those first moments an engine runs prior to building oil pressure are when damage can easily occur