S-93083A117 1/2"-20 Flange Nuts

Key Features & Benefits at a Glance

• Superior vibration resistance with serrated locking design that bites into surfaces to prevent loosening under dynamic loads
• Integrated flange eliminates need for separate washers, reducing assembly time and component count while distributing clamping force
• Corrosion-resistant black-oxide steel construction provides durable protection in demanding industrial environments
• Precision UNF fine threads (1/2"-20) ensure secure fastening and superior resistance to vibration-induced loosening
• External hex drive design enables easy installation with standard tools while maintaining high torque capability
• Class 2B thread fit guarantees consistent performance and reliable engagement with mating components
• Comprehensive compliance with REACH and RoHS 3 environmental standards for global industrial applications

Professional Applications & Engineering Value

This heavy-duty flange locknut addresses critical vibration challenges in industrial machinery, automotive assemblies, and construction equipment. The black-oxide steel construction combined with serrated locking technology creates a permanent vibration-resistant solution that maintains clamp load under extreme conditions. The integrated 1-1/32" flange provides superior bearing surface distribution, preventing surface damage and reducing point loading. With UNF fine threads (1/2"-20) and Class 2B thread fit, this nut delivers precise engagement and reliable performance in applications where vibration-induced loosening could lead to equipment failure or safety hazards. The external hex drive ensures compatibility with standard tools, streamlining maintenance and assembly processes across various industrial sectors.

Specification Summary & Compliance

This flange locknut features precision Class 2B thread fit with 1/2"-20 UNF fine threads and right-hand thread direction. Manufacturing specifications include standard hex nut profile with 3/4" width and 29/64" height, complemented by a 1-1/32" flange diameter and 0.05" flange thickness. The product is fully compliant with REACH (EC 1907/2006) regulations and RoHS 3 (2015/863/EU) directives, ensuring environmental responsibility and global market acceptance for industrial applications requiring reliable locking performance and corrosion resistance.