S-94827A120 5/16"-18 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through Flex-Top locking technology that maintains clamp force in high-stress environments
• Enhanced corrosion protection with cadmium-plated steel construction for extended service life in harsh conditions
• Exceptional torque transmission thanks to the extra wide hex profile that prevents tool slippage during installation
• Reliable reusability with consistent locking performance through multiple installation cycles
• Quick installation compatibility with standard external hex drive tools for efficient assembly operations
• Precise thread engagement ensured by Class 2B thread fit for smooth installation and consistent performance
• Optimal strength-to-weight ratio with robust steel construction that withstands heavy loads without adding unnecessary bulk

Professional Applications & Engineering Value

This 5/16"-18 UNC locknut delivers critical vibration resistance for industrial applications where constant motion and dynamic loads threaten fastener integrity. The cadmium-plated steel construction provides essential corrosion protection in manufacturing environments exposed to moisture, chemicals, or outdoor elements. The Flex-Top locking mechanism creates consistent friction along the thread engagement, effectively preventing loosening under sustained vibration in machinery, automotive assemblies, and heavy equipment. The extra wide hex profile ensures maximum tool contact surface, allowing for higher torque application without rounding the corners - a common failure point in standard hex nuts. This combination of vibration-resistant locking and enhanced drive durability makes it ideal for maintenance-critical applications where downtime must be minimized.

Specification Summary & Compliance

This locknut features 5/16"-18 UNC coarse threads with Class 2B thread fit ensuring precision compatibility with standard male threads. The manufacturing follows UNC thread standards with right-hand thread direction for conventional installation. The cadmium plating provides surface protection while maintaining RoHS and REACH compliance for environmental safety. Dimensions include 9/16" width across flats and 21/64" height, providing the optimal balance between grip surface and profile height for space-constrained applications.