MKS Aluminium Single Servo Horn (L: 1.5/ 1.75/ 2 in) O0002019-2 For HV9767/9780, HV737 / 747
Horn output: 6mm
Screw Diameter: 3mm
25 Tooth Spline
For HV9767/9780, HV737 / HV747 Servos & other brands using a 25 Tooth Spline
Click Here for the Servo Arm Aplication PDF