Dubro Heavy Duty Ball Links 4-40 RC Linkage - DUB899

The Dubro DUB899 Heavy Duty Ball Links are 4-40 threaded linkage connectors designed for use in RC aircraft control systems where standard ball links may not be robust enough. Dubro is a well-regarded name in radio control accessories, and the 899 series ball links are a go-to choice for builders who need reliable, secure connections between pushrods and control horns or servo arms. The 4-40 thread size is one of the most common in RC aircraft construction, making these compatible with a wide range of pushrods and hardware.

Key Features

• Heavy duty construction provides greater strength and resistance to fatigue compared to standard ball links
• 4-40 thread size suits a wide range of RC aircraft pushrods and control linkage hardware
• Ball-and-socket design allows controlled angular movement, reducing binding in control runs
• Suitable for use on ailerons, elevators, rudders, and throttle linkages where precise, play-free connections are needed

What's Included

• Dubro DUB899 Heavy Duty Ball Links, 4-40 thread (quantity as packaged)

What You Need

• Compatible 4-40 threaded pushrods or clevis hardware to complete the linkage installation
• RC aircraft requiring control surface or throttle linkage connections