S-95615A190 7/16"-20 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through nylon insert locking mechanism that maintains secure fastening under dynamic loads
• Enhanced corrosion protection with zinc-plated steel construction for extended service life in demanding environments
• High-temperature performance rated up to 220°F (104°C) for reliable operation in thermal cycling applications
• Precision thread engagement with Class 2B fit ensuring consistent torque values and reduced installation issues
• Grade 5 strength classification providing excellent mechanical properties for medium-duty to heavy-duty applications
• Standard external hex design for compatibility with common wrenching tools and efficient installation
• Full regulatory compliance meeting RoHS 3 and REACH standards for global industrial use

Professional Applications & Engineering Value

This 7/16"-20 UNF nylon insert lock nut delivers critical vibration resistance in industrial machinery, automotive assemblies, and equipment subjected to constant motion. The zinc-plated steel construction provides essential corrosion protection while maintaining the Grade 5 strength rating required for structural integrity. The fine UNF threads offer superior thread engagement compared to coarse threads, reducing the risk of loosening in precision applications. With its 220°F temperature rating, this locknut performs reliably in environments experiencing thermal expansion, making it ideal for engine components, motor mounts, and industrial equipment where thermal cycling occurs. The external hex drive style ensures compatibility with standard tools, streamlining maintenance and assembly processes.

Specification Summary & Compliance

This locknut features 7/16"-20 UNF fine threads with Class 2B thread fit for precise engagement and consistent torque performance. The standard hex profile measures 5/8" across flats with a height of 29/64". Manufactured from zinc-plated steel and rated Grade 5 for mechanical strength, the component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and global market acceptance for industrial fastener applications.