S-90670A243 5/16"-32 ASME B18.2.2 Hex Nuts
Hex Nuts
Image may differ from product. See technical specification for details.
Basic Information
Dimension Parameters
Thread Parameters
Head Parameters
Material & Strength Parameters
Finish & Compliance Parameters
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior vibration resistance due to extra fine UNEF threading, maintaining secure connections in high-precision equipment
- Excellent corrosion resistance from 6061 aluminum construction, ideal for harsh industrial environments
- Precise thread engagement with Class 2B fit ensuring reliable, consistent performance in critical assemblies
- Industry-standard compatibility through ASME B18.2.2 compliance, guaranteeing interchangeability and quality
- Enhanced durability with external hex drive design providing superior torque transmission and tool engagement
- Environmental compliance meeting RoHS 3 and REACH standards for safe, sustainable manufacturing applications
- Optimized weight-to-strength ratio making these aluminum nuts perfect for weight-sensitive applications without compromising integrity
Professional Applications & Engineering Value
These 5/16"-32 UNEF extra fine thread hex nuts deliver exceptional performance in precision engineering applications where standard threading proves insufficient. The 6061 aluminum construction provides optimal strength-to-weight characteristics while resisting corrosion in demanding environments. The extra fine thread spacing offers superior resistance to vibrational loosening in machinery, electronic enclosures, and aerospace components where minute adjustments are critical. With Class 2B thread fit and ASME B18.2.2 compliance, these nuts ensure perfect mating with corresponding fasteners, eliminating play and maintaining alignment in high-tolerance assemblies. The external hex drive design facilitates efficient installation in confined spaces, making them ideal for automated assembly systems and maintenance applications requiring reliable, repeatable fastening solutions.
Specification Summary & Compliance
This hex nut features precise 5/16"-32 UNEF extra fine threading with Class 2B thread fit tolerance for optimal engagement. Manufactured to ASME B18.2.2 specifications with standard external hex drive profile measuring 1/2" width and 17/64" height. Fully compliant with RoHS 3 (2015/863/EU) with exemption 6(b)-II and REACH (EC 1907/2006) standards, ensuring environmental responsibility while maintaining right-hand thread direction for conventional installation.
