Overview
The Du-Bro 4-40 Steel Hex Nuts are essential standard-thread fasteners for completing screw and bolt assemblies on RC airplanes, helicopters, and surface vehicles. Zinc-plated for corrosion resistance, these hex nuts pair perfectly with 4-40 socket head cap screws and machine bolts.
Sold as a 4-pack — great for keeping a few spares in your toolbox or pit kit.
Key Features
- 4-40 thread hex nuts
- Zinc-plated finish for corrosion resistance
- Standard hex profile
- 4 nuts per package
- Trusted Du-Bro quality
Performance Benefits
- Strong mating thread for 4-40 hardware
- Corrosion-resistant zinc plating
- Industry-standard hex profile
- Reliable everyday RC hardware
Usage Notes
- Pair with 4-40 socket head cap screws and bolts
- Use a 1/4" wrench or socket for installation
- Apply thread locker for vibration-prone areas
Technical Specs
- Thread Size: 4-40
- Finish: Zinc plated
- Quantity: 4 per package
What's Included
- (4) Du-Bro 4-40 Steel Hex Nuts
Summary
- Standard 4-40 steel hex nuts
- Zinc-plated finish
- Essential RC hardware
- 4 per package
