S-90949A110 5/8"-11 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, preventing loosening under dynamic loads
- Enhanced corrosion protection with black-phosphate steel coating, extending service life in harsh environments
- Integrated flange design with 1 21/64" diameter distributes load pressure, eliminating need for separate washers
- Reliable coarse UNC threading (5/8"-11) enables faster installation and reduced cross-threading risk
- Precision Class 2B thread fit ensures consistent engagement and optimal clamping force retention
- External hex drive compatibility with standard 15/16" width for common tooling and torque application
- Full regulatory compliance with RoHS 3 and REACH standards for global industrial applications
Professional Applications & Engineering Value
This Grade G flange lock nut addresses critical vibration-induced failure points in heavy machinery, automotive assemblies, and structural frameworks. The distorted thread locking mechanism creates permanent friction resistance without compromising UNC coarse thread engagement, maintaining clamp load under extreme cyclic stresses. Manufactured from black-phosphate steel, it provides 300+ hours of salt spray protection while the integrated 1 21/64" flange eliminates washer migration issues. Ideal for right-hand thread applications requiring repeated disassembly, the external hex drive accommodates high-torque installation in confined spaces common to conveyor systems, agricultural equipment, and renewable energy infrastructure.
Specification Summary & Compliance
Manufactured to Class 2B thread tolerances per ASME B1.1 standards with 5/8"-11 UNC coarse threads and right-hand orientation. The black-phosphate surface treatment meets MIL-DTL-16232 specifications for corrosion resistance. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, containing no SVHC above 0.1% weight concentration. Grade G material certification ensures consistent mechanical properties across production batches.