S-90328A103 8-32 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through integrated external-tooth lock washer design that maintains clamping force in high-motion environments
• Enhanced corrosion protection with black zinc-plated steel construction for extended service life in industrial conditions
• Reliable thread engagement with Class 2B coarse UNC threads ensuring consistent performance and easy installation
• Secure locking performance combining the external-tooth washer with standard hex profile for maximum anti-loosening protection
• Industry-standard compatibility with 8-32 UNC coarse thread systems and external hex drive for universal tool compatibility
• Environmental compliance assurance meeting REACH and RoHS 3 standards for safe use in regulated applications
• Optimized dimensional stability with precise 11/32" width and 5/32" height for consistent fit and performance

Professional Applications & Engineering Value

This 8-32 UNC locknut with integrated external-tooth lock washer addresses critical vibration-induced loosening challenges in industrial machinery, automotive assemblies, and electrical enclosures. The black zinc-plated steel construction provides superior corrosion resistance while maintaining structural integrity under dynamic loads. The coarse UNC threads with Class 2B fit ensure rapid installation and reliable performance in high-vibration environments where traditional fasteners fail. The external-tooth washer design bites into mating surfaces, creating permanent locking action that eliminates the need for secondary locking mechanisms. This engineered solution delivers predictable, maintenance-free performance for applications requiring vibration-resistant fastening in demanding industrial settings.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2B thread fit for consistent engagement and reliable performance. The locknut features 8-32 UNC coarse threads with right-hand direction and standard hex drive compatibility. Full compliance with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental regulations ensures safe use across industrial applications. The integrated external-tooth lock washer provides permanent locking action without compromising the structural integrity of the black zinc-plated steel construction.