S-90670A270 7/8"-9 ASME B18.2.2 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 from 6061 aluminum construction, ideal for harsh industrial environments
- Precise Class 2B thread fit ensures smooth assembly and reliable fastening performance
- Heavy-duty UNC coarse threading provides excellent vibration resistance and quick installation
- ASME B18.2.2 compliance guarantees dimensional accuracy and interchangeability
- REACH and RoHS 3 certification meets strict environmental and safety regulations
- External hex drive design offers superior torque transmission and tool accessibility
- Lightweight aluminum construction reduces overall system weight without compromising strength
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these 7/8"-9 UNC coarse thread hex nuts deliver exceptional performance where weight reduction and corrosion resistance are critical. The 6061 aluminum construction provides excellent strength-to-weight ratio while maintaining Class 2B thread fit precision for consistent engagement and reliable fastening. Ideal for aerospace components, transportation equipment, and machinery assemblies, these ASME B18.2.2 compliant nuts solve common engineering challenges by combining lightweight properties with robust external hex drive functionality. The coarse thread design ensures rapid installation and superior vibration resistance in high-stress environments, making them perfect for maintenance-critical applications where durability and compliance are paramount.
Specification Summary & Compliance
This hex nut features precise Class 2B thread fit with 7/8"-9 UNC coarse thread specifications, manufactured to ASME B18.2.2 standards for dimensional accuracy. The product maintains 1 15/16" width and 3/4" height with right-hand thread direction and external hex drive configuration. Full compliance with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) regulations, including exemption 6(b)-II for lead as an alloying element in aluminum machining applications.
