S-95856A265 3/8"-16 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through nylon insert technology that maintains secure locking under dynamic loads
• Lightweight durability with 6061 aluminum construction providing excellent strength-to-weight ratio
• Reliable reusability with nylon insert designed for multiple installation cycles without performance degradation
• High-temperature performance capable of withstanding environments up to 220°F (104°C)
• Precise thread engagement with UNC coarse threads and Class 2B fit ensuring smooth installation and consistent torque
• Industry-standard compatibility featuring standard hex profile for universal wrench access
• Environmental compliance meeting RoHS 3 and REACH regulations for global industrial applications

Professional Applications & Engineering Value

This 3/8"-16 nylon insert locknut delivers exceptional engineering value in applications where vibration-induced loosening compromises safety and performance. The 6061 aluminum construction provides corrosion resistance while reducing overall assembly weight, making it ideal for aerospace, automotive, and electronic enclosures. The nylon insert locking mechanism creates consistent friction against mating threads, effectively damping vibrations that would cause standard nuts to back off. With UNC coarse threads and Class 2B thread fit, installation is streamlined while maintaining precise tolerances. The external hex drive ensures compatibility with standard tools, reducing installation time in production environments. These locknuts solve critical fastening challenges in machinery, transportation equipment, and structural assemblies where reliable, reusable locking solutions are paramount.

Specification Summary & Compliance

This locknut features 3/8"-16 UNC coarse threads with Class 2B thread fit per ASME B1.1 standards, ensuring proper engagement and torque characteristics. The hexagonal profile measures 9/16" across flats with a height of 29/64". Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental safety standards for industrial components. The nylon insert maintains locking performance within the specified temperature range up to 220°F while providing reliable vibration resistance.