S-90923A222 M5 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through integrated external-tooth lock washer design that maintains clamping force under dynamic loads
• Exceptional corrosion resistance with 18-8 stainless steel construction and 400 stainless steel washer for harsh industrial environments
• Reliable locking performance with Class 6H thread fit ensuring precise engagement and consistent torque values
• Easy installation and removal with standard external hex drive compatible with common metric tools
• Durable coarse thread design (M5 x 0.8mm) that resists cross-threading and provides quick assembly
• Compliance assurance with REACH and RoHS 3 standards for environmentally responsible manufacturing
• Optimized dimensions (8mm width, 5.2mm height) for space-constrained applications while maintaining strength

Professional Applications & Engineering Value

This M5 locknut with external-tooth lock washer addresses critical vibration-induced loosening challenges in industrial machinery, automotive assemblies, and electrical enclosures. The 18-8 stainless steel construction provides excellent corrosion resistance for outdoor or chemically aggressive environments, while the 400 stainless steel washer creates permanent locking action through its external teeth that bite into mating surfaces. The metric coarse thread (M5 x 0.8mm) with Class 6H tolerance ensures reliable thread engagement and prevents galling during installation. This combination delivers maintenance-free fastening solutions for applications where vibration, thermal cycling, or dynamic loads would compromise standard nuts, reducing downtime and maintenance costs across multiple industrial sectors.

Specification Summary & Compliance

This locknut features M5 metric coarse thread with 0.8mm pitch and Class 6H thread fit per ISO standards, ensuring precise dimensional accuracy. The external hex drive (8mm width) provides standard tool compatibility. Manufacturing complies with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) directives, confirming environmental regulatory compliance. The integrated external-tooth lock washer (9.5mm OD) manufactured from 400 series stainless steel provides the locking mechanism, creating a complete vibration-resistant fastening system meeting industrial performance requirements.