S-90810A214 7/8"-9 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 400 Nickel material, ideal for harsh industrial environments and extended service life
- Reliable coarse thread engagement with UNC 7/8"-9 specification for faster assembly and reduced cross-threading risk
- Precise Class 2B thread fit ensures smooth mating with male threads, minimizing play and vibration loosening
- Standard external hex design provides excellent tool accessibility and high torque capability for secure fastening
- Robust dimensional profile (1 5/16" width, 3/4" height) offers substantial bearing surface for even load distribution
- Full regulatory compliance with RoHS 3 and REACH standards, ensuring safe use in global markets
- Right-hand thread direction compatible with standard industrial equipment and maintenance procedures
Professional Applications & Engineering Value
This heavy-duty 7/8"-9 UNC hex nut delivers critical performance in demanding applications where corrosion resistance and thread reliability are paramount. The 400 Nickel construction provides excellent protection against oxidation and chemical exposure, making it suitable for marine, chemical processing, and outdoor infrastructure projects. Its coarse thread spacing allows for rapid installation in high-vibration environments, while the Class 2B thread fit maintains consistent clamping force without galling or seizing. The standard external hex drive ensures compatibility with common wrenching tools, streamlining maintenance operations in industrial machinery, heavy equipment, and structural assemblies where inch fasteners are specified.
Specification Summary & Compliance
This standard hex nut features UNC 7/8"-9 coarse threads with Class 2B thread fit per ASME B18.2.2 standards, ensuring dimensional accuracy and interchangeability. The nut measures 1 5/16" across flats and 3/4" in height. It is manufactured from 400 Nickel and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for restricted substance-controlled applications.
