S-90413A102 8-32 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance with integrated external-tooth lock washer that maintains clamping force under dynamic loads
• Enhanced corrosion protection through zinc-plated steel construction for extended service life in harsh environments
• Quick installation efficiency with coarse UNC threading that reduces assembly time and prevents cross-threading
• Reliable torque transmission via standard external hex drive design compatible with common industrial tools
• Precise thread engagement with Class 2B fit ensuring consistent performance and reduced risk of stripping
• Durable locking mechanism combining steel washer and right-hand thread for secure fastening in high-vibration applications
• Regulatory compliance assurance meeting REACH and RoHS 3 standards for safe industrial usage

Professional Applications & Engineering Value

This 8-32 UNC coarse thread locknut with external-tooth lock washer addresses critical vibration-induced loosening in industrial machinery, automotive assemblies, and electrical enclosures. The zinc-plated steel construction provides essential corrosion resistance while the integrated steel lock washer creates positive locking action that withstands cyclic loading. Engineered with right-hand UNC coarse threading, this solution ensures rapid installation in production environments while maintaining Class 2B thread fit precision for consistent clamping force. The external hex drive profile offers superior torque application capability, making it ideal for maintenance-intensive applications where repeated disassembly is required.

Specification Summary & Compliance

This heavy-duty locknut features precise 8-32 UNC coarse threading with Class 2B thread fit tolerance, ensuring reliable engagement with mating components. The assembly combines a standard hex nut profile (5/16" width) with an external-tooth lock washer (0.344" OD) manufactured from steel. Full compliance with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental standards guarantees safe usage across various industrial sectors while maintaining performance integrity in demanding applications.