S-90636A057 7/16"-20 Locknuts
Locknuts
Image may differ from product. See technical specification for details.
Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior vibration resistance through center lock distorted thread technology that maintains clamp force in high-stress environments
- Exceptional corrosion protection with zinc yellow-chromate plating that withstands harsh industrial conditions
- Heavy-duty performance with Grade 8 strength classification for demanding automotive and machinery applications
- Precise thread engagement with UNF fine thread and Class 2B fit ensuring reliable, permanent fastening
- Easy installation and removal using standard external hex drive compatible with common tools
- Optimal dimensional stability with 11/16" width and 3/8" height providing consistent performance across applications
- Right-hand thread compatibility with standard industrial equipment for seamless integration
Professional Applications & Engineering Value
This Grade 8 heavy-duty locknut with center lock distorted thread technology addresses critical vibration-induced loosening challenges in demanding industrial environments. The zinc yellow-chromate plated steel construction provides dual protection against corrosion while maintaining the structural integrity required for high-stress applications. Engineered with UNF fine threads and Class 2B thread fit, this external hex locknut delivers precise engagement and consistent clamping force in automotive assemblies, heavy machinery, and industrial equipment where vibration resistance is paramount. The distorted thread design creates permanent locking action without requiring additional locking elements, simplifying installation while ensuring reliable performance in critical fastening joints.
Specification Summary & Compliance
Manufactured to precise dimensional standards with 11/16" width and 3/8" height, this locknut features 7/16"-20 UNF fine threads with Class 2B thread fit for optimal engagement. The right-hand thread direction and external hex drive comply with industrial standards, while the Grade 8 strength classification ensures superior mechanical performance. The zinc yellow-chromate plating provides enhanced corrosion resistance, meeting industry requirements for durable surface protection in demanding applications.
