ARP main studs are manufactured from 8740 chrome moly
steel, heat-treated in-house to 200,000 psi tensile strength, and
precision J-form threads rolled after heat-treat to create a fastener
that has threads 1000% stronger than others. All kits come
complete with hardened parallel-ground washers and aerospace
quality nuts. Reduce crankshaft flex and main cap fretting with
these premium quality main studs. Don’t settle for anything less
than the best!