S-90045A453 5/16"-18 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
- Vibration-resistant locking through precision-distorted top threads that maintain tension under dynamic loads
- Corrosion-resistant performance with 18-8 stainless steel construction for harsh industrial environments
- Secure fastening reliability with Class 2B thread fit ensuring consistent engagement with mating components
- Industry-standard compatibility with 5/16"-18 UNC coarse threads for broad application versatility
- Easy installation and removal using standard wrench tools with external hex drive design
- Environmental compliance assurance meeting RoHS 3 and REACH regulations for global supply chain requirements
- Durable mechanical properties maintaining locking performance through repeated assembly cycles
Professional Applications & Engineering Value
This 18-8 stainless steel locknut addresses critical vibration-induced loosening challenges in industrial machinery, automotive assemblies, and structural frameworks. The distorted thread top lock design creates progressive resistance during final tightening, eliminating the need for secondary locking devices. Manufactured with UNC coarse threads and Class 2B fit, it ensures reliable engagement in high-cycle applications while the corrosion-resistant properties of 18-8 stainless steel provide long-term service life in demanding environments. The external hex drive facilitates efficient installation with standard tools, reducing assembly time in production lines and maintenance operations where vibration resistance is paramount for operational safety.
Specification Summary & Compliance
This 5/16"-18 UNC locknut features Class 2B thread fit per ASME B1.1 standards with coarse thread spacing for optimal engagement. The distorted thread top lock mechanism provides consistent locking performance while maintaining full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations. Dimensional specifications include 1/2" width across flats and 17/64" height for standardized installation requirements in industrial fastener applications.
