4an Alm Tube Nuts 7/16-20 6pk Black

The 4AN Alm Tube Nuts 7/16-20 6pk Black from REDHORSE PERFORMANCE are essential fittings for any serious automotive enthusiast working with custom fuel, oil, or brake line systems. Whether you're building a high-performance engine bay, restoring a classic vehicle, or fabricating a complete fuel system from scratch, these aluminum tube nuts provide the secure, leak-free connections that separate amateur work from professional-grade modifications. The six-pack format gives you multiple connection points or spares for complex plumbing projects.

Manufactured in anodized aluminum for superior corrosion resistance and weight savings, the 4AN Alm Tube Nuts feature a 7/16-20 thread pitch that matches standard -4AN hose barbs and hard-line adapters found in performance fuel systems, engine bay cooling loops, and precision brake line assemblies. The black anodized finish resists oxidation in harsh underhood environments while maintaining a clean, professional appearance. Aluminum construction keeps overall system weight minimal—critical in racing and custom builds where every ounce counts—without sacrificing the clamping force needed for high-pressure applications.

These nuts are ideal for mechanics fabricating custom fuel rails, turbo oil supply lines, intercooler plumbing, or nitrous oxide systems where OEM fittings won't work. The 7/16-20 specification is the industry standard for -4AN connections, ensuring compatibility with virtually all aftermarket hose ends, swaged aluminum tubing, and braided stainless steel lines in the 4AN size class. Installation requires only a wrench—hand-tight plus a quarter turn with a 9/16" socket—making them suitable for both street and track applications. Keep extras on hand for repairs, upgrades, or system expansions.