S-4379N121 M20 DIN 934 Hex Nuts

Key Features & Benefits at a Glance

• Superior load distribution through precision M20x2mm fine threads that maintain secure connections in high-vibration environments
• Exceptional mechanical strength with Class 10 rating ensuring reliable performance in heavy-duty industrial applications
• Consistent dimensional accuracy with DIN 934 compliance guaranteeing perfect compatibility with standard metric fasteners
• Enhanced thread engagement through Class 6H thread fit providing superior resistance to loosening under dynamic loads
• Long-term corrosion resistance from quality steel construction maintaining integrity in demanding operating conditions
• Regulatory compliance assurance with RoHS 3 and REACH certification for safe use across global industrial markets
• Optimized installation efficiency with standard 30mm hex profile allowing quick assembly using common wrench tools

Professional Applications & Engineering Value

This Class 10 steel hex nut delivers critical performance advantages for demanding industrial applications where vibration resistance and structural integrity are paramount. The M20x2mm fine metric thread configuration provides significantly increased thread contact area compared to coarse threads, effectively distributing stress loads and preventing spontaneous loosening in machinery, structural frameworks, and heavy equipment. Manufactured to DIN 934 standards, these external hex nuts ensure dimensional consistency across global supply chains while the Class 6H thread fit maintains precise tolerances for reliable assembly. The right-hand thread direction offers standardized installation compatibility, making these metric fasteners ideal for maintenance operations and new construction projects across manufacturing, automotive, and infrastructure sectors.

Specification Summary & Compliance

This hex nut features M20x2mm fine metric threads with Class 6H thread fit tolerance according to ISO standards, ensuring precise engagement with mating components. The fastener conforms to DIN 934 specifications with dimensional accuracy of 30mm width and 16mm height. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental compliance for international industrial applications. The Class 10 strength rating verifies mechanical performance suitable for high-stress applications, while the right-hand thread direction and external hex drive style provide standardized installation characteristics.