S-97131A120 M5 DIN 982, ISO 7040 Locknuts

Key Features & Benefits at a Glance

• Superior vibration resistance through precision-engineered nylon insert that maintains locking force under dynamic loads
• Enhanced corrosion protection with zinc-plated steel construction for extended service life in industrial environments
• High-strength performance with Class 8 rating ensuring reliable fastening in demanding applications
• Temperature resilience with nylon insert rated for continuous operation up to 220°F (104°C)
• Precision threading with Class 6H thread fit and coarse pitch for quick installation and secure engagement
• Standardized compatibility meeting DIN 982 and ISO 7040 specifications for consistent performance
• Easy installation and removal with external hex high-profile design for standard wrench access

Professional Applications & Engineering Value

This M5 nylon insert lock nut delivers critical vibration resistance in industrial machinery, automotive assemblies, and electrical equipment where loosening under dynamic loads poses significant safety risks. The zinc-plated steel construction provides essential corrosion protection while maintaining the Class 8 strength rating required for high-stress applications. The nylon insert locking mechanism creates consistent friction against the mating bolt, eliminating the need for secondary locking devices and reducing assembly time. Engineered to DIN 982 and ISO 7040 standards, this metric locknut ensures dimensional consistency and reliable performance across international manufacturing environments. The coarse thread pitch and external hex drive facilitate rapid installation in production settings while maintaining secure fastening integrity.

Specification Summary & Compliance

This locknut features M5x0.8mm coarse threading with Class 6H thread fit tolerance, ensuring precise engagement with mating components. The 8mm width and 6.3mm height provide optimal dimensional stability for standard applications. Manufactured in compliance with DIN 982 and ISO 7040 international standards, this component meets rigorous quality and performance requirements. Environmental compliance is verified through RoHS 3 (2015/863/EU) certification and REACH (EC 1907/2006) compliance, ensuring safe use across global markets. The Class 8 strength classification confirms mechanical performance suitable for industrial-grade applications requiring reliable locking performance.