S-95922A120 5/16"-18 Flange Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through serrated locking technology that prevents loosening under extreme conditions
• Exceptional strength and durability with Grade 8 steel construction for heavy-duty industrial applications
• Enhanced load distribution thanks to the 43/64" flange diameter that reduces surface pressure
• Easy installation and removal with standard external hex drive design using common tools
• Reliable thread engagement with Class 2B fit UNC coarse threads for secure fastening
• Environmental compliance assurance meeting both REACH and RoHS 3 standards for industrial safety
• Optimized flange design with 0.1" thickness providing stable bearing surface and improved clamping force

Professional Applications & Engineering Value

This Grade 8 steel serrated flange lock nut delivers critical performance in demanding environments where vibration-induced loosening compromises safety and operational integrity. The serrated locking technology beneath the flange creates multiple biting edges that dig into mating surfaces, effectively resisting rotational forces in machinery, automotive, and construction applications. The UNC coarse threads with Class 2B fit ensure rapid assembly while maintaining precise tolerances, reducing installation time without sacrificing reliability. The integrated flange design eliminates the need for separate washers, streamlining inventory while providing superior load distribution. Engineered for heavy-duty applications including industrial equipment, agricultural machinery, and transportation systems, this nut maintains clamp load integrity where standard fasteners typically fail.

Specification Summary & Compliance

This flange lock nut features 5/16"-18 UNC coarse threads with Class 2B thread fit per ASME standards, ensuring precise engagement and reliable performance. The nut meets Grade 8 strength classification with mechanical properties exceeding 150,000 psi minimum tensile strength. Manufacturing complies with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental directives, confirming absence of restricted substances. Critical dimensions include 43/64" flange diameter, 1/2" width across flats, and 9/32" height, providing standardized compatibility with industry tools and applications.