Du-Bro Swivel Ball Links,2-56 x 1/2" (2), 4-40 (DUB2139)
$6.10
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Du-Bro Swivel Ball Links,2-56 x 1/2" (2), 4-40 (DUB2139)
$6.10
Precision Fit
Standard 4-40 Thread Size
Complete Kit
Includes Two Hardware Sets
Smooth Action
Eliminates Steering System Slop
Precision Linkage UpgradeSmooth and Reliable Control Hardware
The Du-Bro Swivel Ball Link Hardware, 4-40 (2) provides ultra-smooth, slop-free linkage movement for your RC aircraft, car, or truck. Manufactured by Dubro, a long-trusted name in precision hobby accessories, these swivel ball links ensure responsive control. Upgrade your RC car setup with high-quality, durable linkage hardware.
Proven Precision & DurabilityEngineered for Aircraft and Surface Models
Designed for high-performance RC applications, the Du-Bro Swivel Ball Link Hardware, 4-40 (2) delivers smooth operation without binding under load. Whether you are setting up critical surface controls on an RC airplane or fine-tuning steering linkages on an RC racing truck, this hardware set provides exact tolerances. Every pack comes with complete connecting hardware to ensure a quick and dependable installation on standard 4-40 threaded pushrods.
Hardware SpecificationsTechnical Details and Sizing Info
Compatible Vehicles
Universal RC Aircraft, Cars, and Trucks
Part Type
Swivel Ball Link Hardware
Thread Size
4-40
Material
Steel and Composite Assembly
Placement/Position
Steering, Throttle, and Control Linkages
Package Quantity
2 Complete Sets
Key FeaturesDesigned for Optimal Control Performance
Package Quantity2 complete sets per package
Thread SpecificationStandard 4-40 thread size
Included HardwareAll necessary mounting fasteners included
Multi-Category UseSuitable for RC airplanes, cars, and trucks
Binding ReductionSmooth swivel action reduces linkage drag
Quality CraftsmanshipPrecision engineered by Dubro
Frequently Asked QuestionsEverything you need to know
What pushrod size fits the Du-Bro Swivel Ball Link Hardware, 4-40 (2)?
The Du-Bro Swivel Ball Link Hardware, 4-40 (2) is engineered specifically for standard 4-40 threaded pushrods commonly used in RC aircraft, cars, and trucks.
Is mounting hardware included with the Du-Bro Swivel Ball Link Hardware, 4-40 (2)?
Yes, each package of Du-Bro Swivel Ball Link Hardware, 4-40 (2) includes all required connecting hardware for installation.
Can I use the Du-Bro Swivel Ball Link Hardware, 4-40 (2) on RC cars and trucks?
Absolutely. While Dubro is famous for model airplane hardware, the Du-Bro Swivel Ball Link Hardware, 4-40 (2) is ideal for steering and throttle linkages on RC surface vehicles.
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