S-95065A160 5/16"-18 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through distorted top-lock thread technology that maintains secure fastening under dynamic loads
• Exceptional durability with Grade 5 steel construction providing reliable performance in demanding industrial environments
• Enhanced corrosion protection from zinc plating that extends service life in various operating conditions
• Easy installation and removal with standard external hex drive design compatible with common wrench tools
• Precise thread engagement with Class 2B thread fit ensuring consistent performance and reduced cross-threading risk
• Reliable locking performance through distorted thread design that eliminates the need for additional locking components
• Regulatory compliance assurance meeting both REACH and RoHS 3 standards for safe industrial use

Professional Applications & Engineering Value

This Grade 5 zinc-plated steel locknut with distorted thread technology addresses critical vibration-induced loosening challenges in industrial applications. The 5/16"-18 UNC coarse thread configuration provides excellent engagement in various materials while the top-lock distortion creates consistent friction that maintains clamp load under dynamic conditions. Engineered for heavy-duty applications including machinery, automotive assemblies, and structural frameworks, this external hex locknut delivers reliable performance where vibration resistance is paramount. The combination of Grade 5 strength classification and zinc-plated surface treatment ensures long-term reliability in demanding environments while maintaining compliance with industrial safety standards.

Specification Summary & Compliance

This locknut features 5/16"-18 UNC coarse threads with Class 2B thread fit for precision engagement, manufactured to Grade 5 strength standards. The external hex drive measures 1/2" across flats with a 19/64" height profile. The product is fully compliant with REACH (EC 1907/2006) regulations and RoHS 3 (2015/863/EU) directives, ensuring environmental safety and industrial suitability. The distorted thread locking mechanism provides reliable vibration resistance without compromising installation or removal efficiency.