Tube Nuts -3 20pk

The Tube Nuts -3 20pk from ALLSTAR PERFORMANCE is an essential fastening component for hydraulic and fuel line systems in performance vehicles, race cars, and industrial applications. These steel tube nuts provide reliable, leak-free connections when paired with -3 AN tubing (3/16 inch diameter), making them indispensable for anyone building or maintaining high-pressure fluid systems. Supplied as a 20-piece set, this bulk pack ensures you have spares on hand for assembly, maintenance, or repairs without the need for frequent reordering.

Manufactured from durable steel and finished with a zinc oxide coating, the Tube Nuts -3 provide corrosion resistance and extended service life in demanding environments. The zinc oxide finish protects against rust and oxidation while maintaining the integrity of the fitting seat, critical for maintaining consistent pressure and preventing fluid loss. The -3 AN designation (equivalent to 3/16 inch tubing) represents a standardized industry specification, ensuring compatibility with matching AN fittings and hoses throughout your system. Proper installation requires hand-tightening followed by wrench-tightening to the appropriate torque specification, creating a secure seal without over-stressing the fitting.

Tube Nuts -3 20pk units are ideal for fabricators, engine builders, and technicians working on fuel injection systems, oil cooler lines, power steering applications, and custom hydraulic assemblies. Whether you're assembling a complete fuel system for a racing engine or replacing worn fittings in an existing setup, the 20-piece quantity ensures adequate inventory for both primary installation and future maintenance. These nuts are compatible with all standard -3 AN tubing and male AN fittings, making them a universal solution for motorsports, agricultural equipment, and industrial machinery where reliable fluid containment is paramount.