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The ARP 5/8‑18 12‑point nut kit supplies high‑quality 12‑point nuts sized for 5/8‑18 fasteners and is intended to complement heavy‑duty hardware assemblies. Useful in engine and drivetrain applications that require compact 12‑point seating for torque access, the kit provides a set of matching nuts for professional installation and reliable fastening when paired with appropriate bolts or studs.
ARP 5/8 -18 12pt Nut Kit
