S-90670A258 9/16"-18 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 and lightweight performance from 6061 aluminum construction, ideal for weight-sensitive industrial applications
- Precise, reliable thread engagement with Class 2B fit ensuring consistent fastening and vibration resistance
- Enhanced torque transmission through standard external hex drive design for secure installation with common tools
- Industry-standard compatibility meeting ASME B18.2.2 specifications for guaranteed interchangeability
- Fine thread advantage providing better tension control and superior load distribution in critical assemblies
- Environmental compliance assurance with RoHS 3 and REACH certifications for global manufacturing requirements
- Dimensional stability with 7/8" width and 31/64" height maintaining structural integrity under load
Professional Applications & Engineering Value
Engineered for demanding industrial environments, these 9/16"-18 UNF fine thread hex nuts deliver exceptional performance where weight reduction and corrosion resistance are critical. The 6061 aluminum construction provides an optimal strength-to-weight ratio for aerospace, automotive, and electronic assemblies while maintaining Class 2B thread fit precision. The fine thread configuration offers superior resistance to vibrational loosening and enables precise tension control in sensitive equipment. Compliant with ASME B18.2.2 standards, these nuts ensure perfect compatibility with existing UNF threaded components, reducing assembly time and eliminating compatibility issues in maintenance and production lines.
Specification Summary & Compliance
This hex nut features 9/16"-18 UNF fine threads with Class 2B thread fit tolerance per ASME standards, ensuring precise engagement and reliable performance. Manufacturing complies with ASME B18.2.2 specifications for dimensional accuracy and mechanical properties. The product meets RoHS 3 (2015/863/EU) compliance with exemption 6(b)-II and REACH (EC 1907/2006) requirements, making it suitable for regulated industries and international markets.
