This is a ProTek R/C Aluminum Replacement Double Sided Servo Horn, for ProTek R/C Servos. This extremely tough servo-horn has been machined from a solid block of aluminum for incredible precision, rigidity and durability. Additionally, the arm is 2.9mm thick, has 16mm & 20mm hole spacing and uses 3mm hardware to suit the geometry and hardware requirements of most vehicles.

Features:

• 16mm & 20mm hole spacing (measured from output shaft screw hole, to linkage rod holes, center to center)
• 2.9mm thick arm
• 49.5mm Overall length
• Linkage holes threaded for 3mm hardware
• 25T ProTek Spline Output Shaft
• Includes 3x10mm button head mounting screw and star lock washer