7/16-20 LH Tube End - 3/4in x .058in

The MEZIERE 7/16-20 LH Tube End is a precision weld-on threaded fitting engineered for custom tube fabrication in high-performance automotive and motorsports applications. This left-hand female thread component accommodates 3/4-inch diameter tubing with 0.058-inch wall thickness, delivering a direct bolt-on solution for builders working with chromoly steel exhaust, coolant, and fuel systems where reliability and clean welds are critical.

Constructed from chromoly steel in natural finish, this tube end combines strength with weldability—chromoly resists fatigue cracking in high-vibration environments better than mild steel while remaining machinable for precise custom fitting. The 7/16-20 left-hand threading specification is reverse-threaded, which prevents accidental loosening in rotational applications and is standard for certain cooling and fuel line configurations where rotation or vibration would otherwise cause a conventional right-hand thread to back out. The 0.058-inch wall specification ensures adequate material for reliable welds without excessive thickness that would complicate fabrication.

This fitting serves custom tube assembly work in racing engines, vintage hot rods, marine engine builds, and industrial cooling systems where OEM hoses or fittings are unavailable or inadequate. Technicians and fabricators value MEZIERE tube ends for dimensional accuracy and consistent material quality—critical factors when welding a complete custom tube manifold or coolant circuit where misalignment or poor fit compromises both function and appearance.

MEZIERE specializes in custom cooling and fuel system components for high-performance applications. Each tube end ships as a single unit, ready for TIG or MIG welding into your tube assembly.