S-90949A033 1/2"-13 Flange Nuts
Flange Nuts
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Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Flange Parameters
Material & Strength Parameters
Finish & Compliance Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance through distorted thread locking technology that maintains secure fastening under extreme conditions
- Enhanced load distribution with 1-1/16" flange diameter that reduces surface pressure and prevents material damage
- Corrosion-resistant protection with black-phosphate steel coating that extends service life in harsh industrial environments
- Reliable thread engagement with Class 2B thread fit ensuring consistent performance and easy installation
- Heavy-duty performance meeting Grade G strength requirements for demanding mechanical applications
- Quick installation with standard external hex drive design compatible with common wrenching tools
- Environmental compliance with REACH and RoHS 3 standards for safe industrial use
Professional Applications & Engineering Value
This Grade G flange lock nut with distorted thread technology provides critical vibration resistance in heavy machinery, automotive assemblies, and structural applications where loosening under dynamic loads poses significant safety risks. The black-phosphate steel construction offers superior corrosion protection while maintaining the mechanical properties required for industrial fasteners. The integrated 1-1/16" flange eliminates the need for separate washers, reducing assembly time and potential failure points. Engineered with UNC coarse threads and Class 2B thread fit, this external hex drive locknut ensures reliable performance in high-vibration environments while maintaining installation efficiency for maintenance crews and production lines.
Specification Summary & Compliance
This flange lock nut features 1/2"-13 UNC coarse threads with Class 2B thread fit tolerance for precise engagement. The right-hand thread direction and external hex drive (3/4" width) provide standard installation compatibility. Manufacturing complies with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) environmental standards, ensuring safe industrial use. The Grade G strength classification confirms mechanical performance requirements for heavy-duty applications.
