S/S Bolt Kit - 12pt. (5) 7/16-14 x 2.250

The S/S Bolt Kit - 12pt. (5) 7/16-14 x 2.250 from ARP is a premium stainless steel fastener solution engineered for critical applications where corrosion resistance and reliable clamping force are non-negotiable. This five-piece bolt kit is purpose-built for high-performance engine builds, marine environments, and precision machinery where standard hardware fails under stress or exposure. Whether you're assembling a race engine, upgrading a manifold, or securing components in saltwater-prone settings, this kit delivers the dependability that separates professional-grade builds from amateur work.

Each bolt in this kit features 12-point head geometry, which increases contact surface area and distributes load more evenly than traditional six-point designs, reducing the risk of stripped fasteners and bolt failure under vibration. The stainless steel construction provides superior corrosion resistance compared to zinc-plated or cadmium alternatives, ensuring long-term integrity in humid, salt-air, or chemically aggressive environments. With a 7/16-14 thread specification and 2.250-inch length, these bolts are precisely sized for common engine applications including intake manifolds, exhaust manifolds, and accessory mounting points where OEM hardware may not meet performance demands.

Engine builders, automotive enthusiasts, and industrial technicians trust ARP fasteners because they eliminate variables that compromise reliability. This five-piece kit works best for applications requiring a small number of high-strength fasteners where mixing material grades or head styles invites failure. Proper installation requires using a torque wrench with manufacturer-recommended specifications and applying anti-seize compound on stainless steel threads to prevent galling. Check your build documentation or consult with your engine builder to confirm that 7/16-14 x 2.250 dimensions match your specific application before purchase.