S-90670A180 1/2"-20 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 thanks to 6061 aluminum construction, ideal for harsh industrial environments
- Precise, reliable fastening ensured by Class 2B thread fit for minimal play and secure connections
- Enhanced fatigue resistance from the UNF fine thread design, maintaining clamp load under vibration
- Industry-standard compatibility with ASME B18.2.2 compliance for guaranteed interchangeability
- Easy installation and removal with standard external hex drive design using common tools
- Environmental and safety compliance with RoHS 3 and REACH certifications for responsible sourcing
- Optimal strength-to-weight ratio from aluminum material, reducing overall assembly weight without sacrificing durability
Professional Applications & Engineering Value
This 1/2"-20 UNF fine thread hex nut in 6061 aluminum addresses critical engineering challenges in industries where corrosion resistance and lightweight performance are paramount. The fine thread spacing provides superior vibration resistance, making it ideal for aerospace components, precision machinery, and electronic enclosures where loosening under dynamic loads is a concern. Manufactured to ASME B18.2.2 specifications, it ensures perfect compatibility with standard UNF threaded bolts, while the external hex drive allows for high-torque installation with common wrenches. The aluminum construction prevents galvanic corrosion when paired with compatible materials, extending service life in demanding applications.
Specification Summary & Compliance
This hex nut features 1/2"-20 UNF fine threads with Class 2B thread fit for precise dimensional accuracy. Manufactured in compliance with ASME B18.2.2 standards with dimensions of 3/4" width and 7/16" height. The product is RoHS 3 compliant (with exemption 6(b)-II) and REACH compliant (EC 1907/2006) regarding 233 SVHCs as of 01/17/2023, ensuring environmental responsibility and regulatory adherence for industrial fastener applications.
