12AN Aluminum Tube Nut 3/4in Hard Line Black

The 12AN Aluminum Tube Nut 3/4in Hard Line Black from REDHORSE PERFORMANCE is a precision fitting engineered for high-performance hydraulic and fuel line assemblies. This tube nut serves as the critical connection point in hard line systems, securing aluminum tubing while maintaining structural integrity under pressure and vibration. Designed for automotive, marine, and industrial applications where reliability is non-negotiable, this fitting ensures leak-free performance in demanding environments.

Manufactured from lightweight aluminum and finished in black anodize, the 12AN tube nut combines durability with corrosion resistance. The anodized coating protects against oxidation and environmental degradation, essential for systems exposed to moisture, salt spray, or extreme temperatures. The 3/4-inch tube diameter specification ensures compatibility with standard hard line tubing in 12 AN applications, while the precision-threaded design guarantees a secure, repeatable connection with minimal assembly torque variance. This construction method reduces overall system weight without compromising structural reliability.

Technicians and fabricators rely on REDHORSE PERFORMANCE fittings for custom fuel systems, brake line upgrades, and power steering assemblies on performance vehicles and industrial equipment. The tube nut threads onto hard aluminum tubing with a flared or crush-washer connection, creating a sealed joint that withstands pressure cycles and thermal expansion. Installation requires proper tube prep and appropriate torque specifications—verify your system's pressure rating and consult line routing diagrams before assembly. This individual fitting pairs seamlessly with matching 12 AN hard line components for complete system integration.