S-90576A815 M8 DIN 985, ISO 10511 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through nylon insert technology that maintains locking force under dynamic loads
• Enhanced corrosion protection with zinc yellow-chromate plating for extended service life in harsh environments
• High-strength performance with Class 8 rating ensuring reliable fastening in demanding applications
• Temperature resilience with nylon insert capable of withstanding temperatures up to 220°F (104°C)
• Precise metric threading with M8x1.25 coarse thread profile for quick assembly and disassembly
• Standard hex design with 13mm width for compatibility with common wrench tools
• International compliance meeting both DIN 985 and ISO 10511 standards for global project requirements

Professional Applications & Engineering Value

This M8 nylon insert lock nut delivers critical vibration resistance where conventional fasteners fail. The nylon locking element creates consistent friction against the bolt thread, preventing loosening from machinery vibrations, impact loads, or thermal cycling. Made from zinc yellow-chromate plated steel, it provides superior corrosion protection for automotive assemblies, industrial equipment, and machinery subjected to oils, moisture, and environmental exposure. The Class 8 strength rating ensures structural integrity under high tensile loads, while the coarse metric thread (M8x1.25) enables rapid installation in production environments. With temperature tolerance to 220°F, this external hex locknut maintains performance in engine compartments, motor mounts, and vibrating machinery where thermal stability is essential.

Specification Summary & Compliance

This locknut features M8x1.25 mm coarse threads with Class 6H thread fit for precise engagement and consistent clamping force. The 13mm hex width and 8mm height provide standard dimensional compatibility. Manufactured to DIN 985 and ISO 10511 specifications, this component meets international quality standards for dimensional accuracy and performance. The zinc yellow-chromate plating offers corrosion resistance while maintaining compliance with RoHS and REACH environmental directives. The Class 8 strength classification confirms mechanical properties suitable for high-stress industrial applications.