M4 Adjustable Control Horn Assembly Dia 4.1mm × L65mm

M4 Adjustable Control Horn Assembly Dia 4.1mm × L65mm

This M4 Adjustable Control Horn Assembly is a robust and versatile linkage solution for RC aircraft control surfaces. Combining an adjustable horn with a 4.1mm bore mount and 65mm arm length, it provides the extended throw and precise geometry needed for larger control surfaces on sport, scale, and aerobatic RC aircraft.

• Thread Size: M4
• Bore Diameter: 4.1mm
• Arm Length: 65mm
• Material: Metal (aluminium or steel) – strong and lightweight
• Adjustability: Multiple hole positions along the arm for varying throw and differential settings
• Fastening: Grub screw (set screw) secured to axle or control surface mount
• Application: Aileron, elevator, rudder, and flap control horns on larger RC aircraft
• Compatible With: Standard M4 clevis, ball link, and pushrod linkage systems

The extended 65mm arm length provides greater mechanical advantage and throw range — ideal for large-scale aircraft where standard-length horns don’t provide enough leverage for full, precise control surface deflection.