Overview
The Du-Bro 4-40 Nylon Insert Lock Nuts are zinc-plated, aircraft-quality lock nuts that resist loosening from vibration. The internal nylon insert grips the bolt threads, locking the nut in place even under heavy vibration.
Sold as a 4-pack.
Key Features
- 4-40 nylon insert lock nuts
- Zinc-plated, aircraft quality
- Vibration-resistant nylon insert
- 4 nuts per package
Performance Benefits
- Resists loosening from vibration
- Aircraft-quality construction
Usage Notes
- Use with matching 4-40 threaded bolts
Technical Specs
- Thread: 4-40
- Plating: Zinc
- Weight: 0.5 g
- Quantity: 4 per package
What's Included
- (4) Du-Bro 4-40 Nylon Insert Lock Nuts
Summary
- 4-40 nylon insert lock nuts
- 4-pack
