Overview
The Du-Bro 4mm Nylon Insert Lock Nuts are zinc-plated, aircraft-quality lock nuts engineered to resist loosening from vibration. The internal nylon insert grips the threads of the bolt, locking the nut in place even under heavy vibration loads.
Sold as a 4-pack.
Key Features
- 4mm 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
- Reusable several times
Usage Notes
- Use with matching 4mm threaded bolts
- Reduce torque slightly compared to standard hex nuts
Technical Specs
- Thread: 4mm
- Plating: Zinc
- Quantity: 4 per package
What's Included
- (4) Du-Bro 4mm Nylon Insert Lock Nuts
Summary
- 4mm nylon insert lock nuts
- Zinc-plated, aircraft quality
- 4-pack
