4-40 E/Z Adjust Ball Links w/Hardware (2/pkg), Du-Bro DB Ball Links 093" diameter (4-40) threaded rods

093" diameter (4-40) threaded rods

and provide clean

These ball links provide friction-free movement

flat foam 3D planes

4-40 E/Z Adjust Ball Links w/Hardware (2/pkg), Du-Bro DB Ball Links 093" diameter (4-40) threaded rodsDu Bro 2137 4 40 E Z Adjust Ball Links w Hardware 2 per package The DU BRO E Z Adjust Ball Links are designed for RC pilots who want strong, smooth, and highly adjustable control linkage hardware. These ball links are built for durability and precise movement, making them perfect for elevators, ailerons, rudders, steering systems, and throttle linkages. If you want more control over how your linkage feels and performs, this is an excellent upgrade.