S-4391N121 M20 DIN 934 Hex Nuts
Hex Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments
- Exceptional load-bearing capacity from Class 10 strength grade, ensuring reliable performance under high-stress conditions
- Precision fine threading with 2mm pitch and Class 6H fit, providing vibration-resistant, secure fastening connections
- Standardized dimensions per DIN 934 specification, guaranteeing compatibility with metric bolt systems and easy installation
- Optimized external hex drive design allows for high-torque application using common wrench tools
- Regulatory compliance with RoHS 3 and REACH standards, meeting international environmental and safety requirements
- Dimensional consistency with 30mm width and 16mm height, ensuring uniform performance across applications
Professional Applications & Engineering Value
This M20 hex nut delivers critical engineering advantages through its zinc-plated steel composition and fine thread configuration. The Class 10 strength rating provides exceptional resistance to loosening under dynamic loads, making it ideal for heavy machinery, structural assemblies, and automotive applications where vibration is a concern. The 2mm pitch metric threading creates more thread engagement points compared to coarse threads, distributing stress more evenly and preventing stripping in softer materials. Combined with DIN 934 standardization, this hex nut ensures precise dimensional accuracy for seamless integration with M20 bolts in industrial fastening systems, reducing assembly time while maintaining joint integrity.
Specification Summary & Compliance
Manufactured to DIN 934 standards with Class 6H thread fit tolerance for precise mating with compatible bolts. Features right-hand metric threads with 2mm fine pitch and standardized 30mm width × 16mm height dimensions. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe usage across industrial sectors.
