S-90576A829 M12 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 yellow-chromate plating that extends service life in demanding environments
• High-temperature performance with nylon insert rated for continuous operation up to 220°F (104°C)
• Exceptional strength reliability with Class 8 rating ensuring consistent performance in heavy-duty applications
• Global compliance assurance meeting both DIN 982 and ISO 7040 standards for international project compatibility
• Easy installation and removal with standard 19mm external hex drive compatible with common tools
• Precision thread engagement with Class 6H thread fit providing secure fastening without cross-threading risks

Professional Applications & Engineering Value

This M12 nylon insert lock nut delivers critical vibration resistance in demanding industrial environments where constant motion and mechanical stress would compromise standard fasteners. The zinc yellow-chromate plated steel construction provides dual protection against corrosion and wear, while the precision-molded nylon insert creates consistent locking force that prevents loosening under extreme conditions. Engineered to DIN 982 and ISO 7040 standards, these Class 8 locknuts are ideal for automotive assemblies, heavy machinery, conveyor systems, and industrial equipment where reliable fastening is essential for operational safety and reduced maintenance downtime. The coarse metric thread (M12x1.75mm) ensures quick installation and superior holding power in high-vibration applications.

Specification Summary & Compliance

This locknut features M12x1.75mm coarse threads with Class 6H thread fit for precision engagement, manufactured from zinc yellow-chromate plated steel with dimensions of 19mm width and 14mm height. The product complies with DIN 982 and ISO 7040 international standards and carries Class 8 strength rating for heavy-duty performance. The nylon insert maintains functionality up to 220°F maximum temperature while providing consistent vibration resistance. Manufactured to meet industrial quality requirements and compatible with RoHS and REACH environmental directives.