PTK-7819-BK ProTek RC Aluminum Clamping Servo Horn (Black) (25T-ProTek) | The RC Shop at Dr Dans

Engineered from solid aluminum and precision-machined for maximum rigidity, this ProTek RC servo horn delivers uncompromising durability on the track. The innovative clamp-type design securely grips your servo's output shaft, preventing loss even if the retainer screw loosens—critical for race reliability. Built with a robust 3.5mm arm and dual hole spacing (16.5mm and 20mm) threaded for 3mm hardware, it accommodates most vehicle setups. Each unit arrives fully anodized in black with all necessary mounting hardware: button head screw, clamp screws, and star lock washer. Purpose-built for ProTek servos and demanding RC applications.

Features:

Clamp design
16.5mm and 20mm hole spacing (measured from output shaft screw hole, to linkage rod holes, center to center)
3.5mm thick arm
31mm Overall length
Linkage holes threaded for 3mm hardware
25T Spline ProTek Output Shaft