S-90670A246 3/8"-32 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 with 6061 aluminum construction for extended service life in demanding environments
- Exceptional vibration resistance due to UNEF extra fine thread spacing that maintains secure connections
- Precise thread engagement with Class 2B fit ensuring reliable performance and reduced assembly issues
- Industry-standard compatibility through ASME B18.2.2 compliance for seamless integration with existing systems
- Enhanced torque application with standard external hex drive design for easy installation and removal
- Environmental compliance assurance meeting both REACH and RoHS 3 standards for global manufacturing applications
- Optimized strength-to-weight ratio from aluminum construction reducing overall assembly weight without compromising durability
Professional Applications & Engineering Value
This 3/8"-32 UNEF hex nut delivers exceptional engineering value through its 6061 aluminum construction and extra fine thread spacing, specifically designed to address critical industrial challenges. The Class 2B thread fit provides superior vibration resistance in high-frequency applications, preventing loosening in machinery, aerospace components, and precision instruments. The ASME B18.2.2 compliance ensures dimensional consistency across manufacturing operations, while the aluminum material offers excellent corrosion resistance for harsh environments. This combination makes the nut ideal for applications requiring lightweight durability and reliable performance in automotive, electronics, and specialized equipment where precision thread engagement is paramount for operational safety and longevity.
Specification Summary & Compliance
This hex nut features Class 2B thread fit with UNEF extra fine thread spacing (3/8"-32) and right-hand thread direction, manufactured to ASME B18.2.2 specifications. Dimensions include 9/16" width and 21/64" height with standard hex profile and external drive style. The product is fully compliant with REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) with exemption 6(b)-II for lead as an alloying element in aluminum machining applications.
