S-99183A540 M8 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through top lock distorted thread design that maintains secure fastening under dynamic loads
• Enhanced corrosion protection with black phosphate steel coating for extended service life in harsh industrial environments
• High-strength performance with Class 10 rating ensuring reliable performance in demanding applications
• Precise thread engagement with Class 6H thread fit providing consistent, reliable mating with mating components
• Easy installation and removal using standard 13mm external hex drive compatible with common tools
• Regulatory compliance assurance meeting both REACH and RoHS 3 standards for safe industrial use
• Optimal dimensional stability with 8mm height profile maintaining structural integrity under load

Professional Applications & Engineering Value

This M8 locknut with distorted thread technology addresses critical vibration-induced loosening challenges in industrial machinery, automotive assemblies, and heavy equipment. The top lock design creates progressive resistance along the thread path, effectively damping harmonic vibrations that compromise standard fasteners. Manufactured from black phosphate steel, this Class 10 locknut provides exceptional corrosion resistance while maintaining the mechanical properties required for high-stress applications. The coarse 1.25mm pitch thread ensures rapid installation and reliable performance in environments where fine adjustments aren't practical, making it ideal for production lines requiring both speed and security in fastening solutions.

Specification Summary & Compliance

This metric locknut features M8x1.25mm coarse threading with Class 6H thread fit tolerance, ensuring precise dimensional accuracy per ISO standards. The external hex drive configuration (13mm width) accommodates standard wrenching tools while the 8mm height profile provides optimal clamping force distribution. Manufacturing complies with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) regulations, guaranteeing environmental safety and material compliance. The Class 10 strength rating confirms this locknut meets rigorous mechanical performance standards for industrial applications requiring dependable, vibration-resistant fastening solutions.