S-95065A171 3/8"-16 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through distorted top lock threads that maintain secure fastening under dynamic loads
• Exceptional strength and durability with Grade 5 steel construction suitable for heavy-duty industrial applications
• Reliable corrosion protection provided by zinc plating for extended service life in demanding environments
• Easy installation and removal with standard external hex drive design compatible with common tools
• Precise thread engagement ensured by Class 2B thread fit for consistent performance and reduced cross-threading risk
• Wide compatibility with UNC 3/8"-16 coarse thread components commonly used in industrial assemblies
• Environmental compliance meeting both RoHS 3 and REACH standards for responsible manufacturing

Professional Applications & Engineering Value

This Grade 5 zinc-plated steel locknut delivers critical vibration resistance in demanding industrial environments where loosening under dynamic loads poses significant safety and performance risks. The distorted thread top lock design creates consistent interference that maintains clamping force without requiring additional locking elements, simplifying assembly while ensuring reliability. Engineered with UNC 3/8"-16 coarse threads and Class 2B thread fit, this external hex locknut provides optimal engagement in machinery, automotive, and construction applications where vibration and shock loads are prevalent. The zinc-plated steel construction offers corrosion resistance while maintaining the high tensile strength required for Grade 5 performance standards, making it ideal for critical fastening applications where failure is not an option.

Specification Summary & Compliance

This locknut features UNC 3/8"-16 coarse threads with Class 2B thread fit for precise dimensional accuracy and reliable engagement. The right-hand thread direction and standard hex profile (9/16" width, 3/8" height) ensure compatibility with industry-standard tools and components. Manufactured to meet Grade 5 strength classification requirements, the nut complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, confirming its suitability for regulated industrial applications.