Overview
The Du-Bro 4-40 Swivel Ball Links feature precision-burnished, nickel-plated brass swivel balls for the smoothest possible linkage operation. Each link comes complete with socket head cap screw, brass shim, and hex nut — everything you need for a clean, professional install.
Sold in a generous 12-pack, perfect for full-aircraft installs, surface vehicle setups, or stocking the shop. Made in USA.
Key Features
- Burnished, nickel-plated brass swivel balls
- Smooth, slop-free linkage operation
- Designed for 4-40 threaded rods
- Includes socket head cap screw, brass shim, and hex nut
- 12 ball link assemblies per package
- Made in USA
Performance Benefits
- Smoothest swivel action available
- Strong, reliable linkage hold
- Generous quantity for major builds
- Professional-grade quality
Usage Notes
- Ideal for RC airplanes, helicopters, and surface vehicles
- Use with 4-40 threaded pushrods
- Tighten hex nut against brass shim for proper preload
Technical Specs
- Thread Size: 4-40
- Weight: 2 grams per assembly
- Quantity: 12 per package
What's Included
- (12) 4-40 Swivel Ball Link Assemblies
- (12) Socket Head Cap Screws
- (12) Brass Shims
- (12) Hex Nuts
Summary
- Premium 4-40 swivel ball links
- Nickel-plated brass swivels
- Complete with mounting hardware
- Made in USA
