S-97135A421 7/16"-14 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through nylon insert locking technology that maintains secure fastening in high-stress environments
• Exceptional strength and durability with Grade 8 classification, ensuring reliable performance in heavy-duty industrial applications
• Enhanced corrosion protection from black-oxide steel construction, extending service life in demanding conditions
• Wide temperature compatibility with nylon insert rated up to 220°F, suitable for various operating environments
• Precise thread engagement with Class 2B thread fit and UNC coarse threads for consistent, reliable installation
• Easy installation and removal with standard external hex drive design compatible with common tools
• Regulatory compliance assurance meeting REACH and RoHS 3 standards for environmental and safety requirements

Professional Applications & Engineering Value

This Grade 8 nylon insert locknut delivers critical vibration resistance in demanding industrial applications where loosening under dynamic loads poses significant safety and performance risks. The black-oxide steel construction provides essential corrosion protection while maintaining the high tensile strength required for heavy machinery, automotive assemblies, and structural applications. The 7/16"-14 UNC coarse thread configuration ensures rapid installation and reliable performance in high-vibration environments, while the nylon insert creates consistent locking force without damaging mating threads. Engineered to withstand temperatures up to 220°F, this external hex locknut maintains its locking capabilities across diverse operating conditions, making it ideal for manufacturing equipment, transportation systems, and construction machinery where vibration-induced failure is not an option.

Specification Summary & Compliance

This locknut features Class 2B thread fit tolerance with UNC coarse threads (7/16"-14) in right-hand direction, ensuring precise engagement and consistent performance. The standard hex profile measures 5/8" width and 29/64" height for compatibility with standard tools. Manufactured to Grade 8 strength specifications, this component is fully compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental standards, meeting current regulatory requirements for industrial applications.