The Du-Bro DUB517 Pull-Pull System is a 2-56 threaded cable-based control linkage system for RC aircraft rudder and other control surface applications. The pull-pull design eliminates pushrod flex for precise, responsive control surface movement. Includes cable, 2-56 threaded connectors, and hardware for a complete installation. Key Features 2-56 threaded pull-pull cable control system for RC aircraft Eliminates pushrod flex for precise, responsive control surface movement Includes cable, 2-56 threaded connectors, and mounting hardware Ideal for rudder and other control surface pull-pull applications Durable construction for long service life Compatibility Compatible with 2-56 threaded RC aircraft control linkage hardware Suitable for glow, gas, and electric RC aircraft rudder and control surface linkages Specifications SKU DUB517 Thread Size 2-56 Type Pull-Pull Cable Control System Application RC aircraft rudder and control surface linkage