Serrated Flange Locking for Vibration Resistance
Built-In Locking Without Additional Components
Whiz-lock nuts, also known as serrated flange lock nuts, feature an integrated flange with serrations that bite into the mating surface, creating a strong locking effect. This design eliminates the need for separate washers while providing excellent resistance to vibration and loosening.
At Offshore Milling & Sourcing, we supply high-quality whiz-lock nuts engineered for durability, ease of installation, and reliable performance in demanding applications.
Types Available
- Standard Whiz-Lock Nuts
- Serrated Flange Lock Nuts
- Metric Flange Lock Nuts
- High-Strength Whiz-Lock Nuts
- Stainless Steel Whiz-Lock Nuts
- Custom Per-Print Lock Nuts
Key Features
- Integrated flange eliminates need for washers
- Serrated teeth provide locking action
- Distributes load over a wider surface area
- Quick and easy installation
- Ideal for high-vibration environments
Materials
- Carbon Steel
- Alloy Steel
- Stainless Steel 18-8 (304)
- Stainless Steel 316
- Specialty Alloys (upon request)
Finish & Coating Options
- Zinc Plated
- Black Oxide
- Plain Finish
- Stainless (Natural Finish)
- Phosphate Coated
- Zinc Flake Coatings
- Custom Corrosion-Resistant Coatings
Industries Served
- Automotive
- Construction
- Industrial Equipment
- HVAC Systems
- Manufacturing
- Heavy Equipment
Applications
- Automotive assemblies
- Machinery and equipment
- Structural components
- Sheet metal fastening
- High-vibration environments
- General-purpose fastening
Key Benefits
- Excellent resistance to loosening
- Eliminates need for additional washers
- Faster installation and reduced assembly time
- Strong load distribution
- Reliable performance in dynamic conditions
Why Offshore Milling & Sourcing?
- Direct factory sourcing for competitive pricing
- Consistent quality and precision manufacturing
- Wide range of materials and configurations
- Custom engineering and per-print capabilities
- Reliable global logistics and supply chain
Request a Quote
Looking for dependable locking fasteners?
Contact Offshore Milling & Sourcing today for pricing, samples, and custom whiz-lock nut solutions.



