3/4-16 LH Tube End - 1-1/4in x .120in

The 3/4-16 LH Tube End is a weld-on threaded connector designed for hydraulic and fluid transfer systems that demand reliable, secure connections. This left-hand female threaded fitting accommodates 1-1/4 inch tubing and is engineered for applications where directional threading prevents accidental loosening under vibration or pressure cycling. Commonly used in agricultural equipment, construction machinery, mobile hydraulics, and industrial fluid lines, this tube end provides the precision fit and durability required in demanding field environments.

Manufactured from chromoly steel in natural finish, the 3/4-16 LH Tube End delivers superior strength and corrosion resistance compared to standard mild steel alternatives. The 0.120-inch tube wall specification ensures compatibility with medium-duty tubing while maintaining structural integrity under sustained pressure loads. The weld-on design allows for permanent, vibration-resistant installation, eliminating the need for repeated tightening or maintenance that threaded connections often require. Left-hand threading (LH) is critical in applications where standard right-hand fittings would loosen due to rotational forces or where dual-threaded systems require directional separation for safety and functionality.

Technicians, equipment manufacturers, and field service professionals rely on this tube end for custom hydraulic assemblies, mobile equipment refurbishment, and OEM replacement work. The compact 1.8 x 1.7 x 4-inch package and light 0.35-pound weight make it easy to inventory and transport to job sites. Installation requires proper tube end preparation and MIG or TIG welding to a clean, degreased tube surface; ensuring full penetration welds is essential for pressure-rated systems. This fitting is ideal for both new construction projects and field repairs where proven chromoly performance and left-hand thread security are non-negotiable.