Bulkhead Nut -20

The Bulkhead Nut -20 AN from Allstar Performance is a precision aluminum fitting component engineered for high-performance hydraulic and pneumatic systems in racing and motorsports applications. Designed to secure bulkhead fittings in tight engine bay installations, this nut serves as a critical connection point where reliability and vibration resistance are non-negotiable. Built for serious competitors who demand dependable hardware that won't loosen under extreme acceleration, braking, and cornering forces.

Manufactured from lightweight aluminum and finished in black anodize for corrosion resistance and a professional appearance, the Bulkhead Nut -20 AN meets AN (Army-Navy) -20 port specifications for seamless compatibility with standard bulkhead fittings in fuel, oil, coolant, and brake line assemblies. The anodized coating protects against oxidation and chemical attack while maintaining the nut's structural integrity under pressure cycling and thermal stress. Its compact, knurled design allows secure hand-tightening without requiring oversized wrenches, making installation and maintenance accessible in confined spaces.

This nut is ideal for custom fuel system builds, brake system upgrades, and coolant line installations on race vehicles, street rods, and high-performance street cars where aluminum components reduce weight without compromising strength. Compatible with all -20 AN bulkhead fittings, it pairs seamlessly with braided hose assemblies and sandwich adapters common in performance plumbing. Its lightweight profile contributes to overall vehicle weight reduction—a priority for competitors focused on acceleration and handling optimization.