QA1 MHFL12Z-1 H Series 3-Piece Alloy Rod End 12mm Bore M12x1.25 LH Female

The QA1 MHFL12Z-1 is a precision-engineered H Series metric female rod end featuring a traditional three-piece alloy/chromoly steel construction with a 12mm bore and M12x1.25 left-hand thread. This rod end features a higher ball-to-race conformity that creates tighter tolerances, making it ideal for precision applications where tight tolerances are critical.

Construction and Materials:

• Ball: 52100 bearing steel, heat treated, precision ground, hard chrome plated
• Race: Alloy/chromoly steel
• Body: Alloy/chromoly steel, heat treated, protective coated for corrosion resistance

Key Features:

• 12mm bore diameter for precise fitment
• M12x1.25 left-hand female thread configuration
• Includes grease fitting (Zerk) which, when lubricated regularly, can extend the life of the rod end, reduce wear, and enhance performance
• Heat treated for superior strength and durability
• Three-piece design with precision ball insert and swaged construction

The three-piece construction process involves pressing the ball into a sleeve that is then swaged around the ball to create the insert assembly. The outer diameter of the insert is precision-turned and finished with a protective coating. This rod end is designed for automotive, motorsports, and industrial linkage applications requiring metric threads and high-precision articulation.