S-93776A451 5/16"-24 Flange Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance through serrated locking technology that prevents loosening under dynamic loads
• Enhanced corrosion resistance with 18-8 stainless steel construction for long-term reliability in harsh environments
• Integrated flange design eliminates need for separate washers while distributing load over wider surface area
• Precision UNF fine threading (5/16"-24) ensures secure fastening with Class 2B thread fit for consistent engagement
• External hex drive compatibility with standard tools for quick installation and removal in confined spaces
• Regulatory compliance assurance with REACH and RoHS 3 standards for global industrial applications
• Right-hand thread configuration provides familiar installation for standard assembly procedures

Professional Applications & Engineering Value

This 18-8 stainless steel flange lock nut delivers exceptional performance in vibration-prone industrial environments where fastener integrity is critical. The serrated locking mechanism beneath the flange creates permanent resistance to rotational loosening, making it ideal for automotive assemblies, machinery frames, and electrical enclosures. The UNF fine thread configuration (5/16"-24) provides superior thread engagement compared to coarse threads, while the integrated flange (43/64" diameter) distributes clamping force effectively, reducing surface damage and maintaining joint integrity. Manufactured from corrosion-resistant 18-8 stainless steel, this external hex drive nut withstands harsh operating conditions while maintaining its locking properties through repeated installation cycles.

Specification Summary & Compliance

This flange lock nut features 5/16"-24 UNF fine threads with Class 2B thread fit for precise engagement, standard 1/2" hex width for tool compatibility, and 9/32" height profile. The flange measures 43/64" in diameter with 0.11" thickness for optimal load distribution. Manufactured in compliance with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) regulations, ensuring environmental responsibility and workplace safety standards.