5/8-18 LH Tube End - 1in x .095in

The MEZIERE 5/8-18 LH Tube End is a precision-engineered weld-on fitting designed for custom fabrication and repair of high-performance cooling and fuel systems. Built from chromoly steel with a natural finish, this left-hand threaded female tube end accepts 1-inch diameter tubing with 0.095-inch wall thickness, making it ideal for applications requiring durable, leak-free threaded connections in demanding automotive and motorsports environments.

The 5/8-18 thread specification provides a secure, industry-standard connection for tube assemblies where reliability under pressure and vibration is critical. Chromoly construction offers superior strength-to-weight characteristics compared to mild steel, allowing the fitting to withstand thermal cycling and mechanical stress inherent in engine bay and fuel system applications. The left-hand threading accommodates reverse-flow or specialized plumbing configurations where right-hand threads are impractical or unsafe. At just 0.16 lbs, the fitting adds minimal weight while delivering the structural integrity required for racing, custom fabrication, and high-output engine builds.

This tube end is targeted at fabricators, engine builders, and motorsports enthusiasts who demand OEM-quality components for custom cooling lines, overflow tanks, and fuel delivery systems. It solves the challenge of creating watertight, vibration-resistant connections in applications where off-the-shelf hose clamps or quick-disconnects fall short. Whether building a street rod, turbo system, or competition engine, this MEZIERE fitting delivers the precision and durability expected in professional-grade fuel and cooling system work.