These are the Futaba Servo Horn Screws for the S3103 Micro Mini Servo.
These screws secure the horn to the splined output shaft of the servo.
Keep extras on hand, or replace missing horn screws.
Black in color, constructed of hardened steel for long life.
Ten Servo Horn Screws for the S3103 Micro Mini Servo
Phillips screwdriver to install servo horn with screw.
Length: 0.16" (4.2mm)
Width: 0.07" (1.8mm)