S-90670A273 1"-8 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 for extended service life in harsh environments
- Optimized assembly efficiency with coarse UNC threads that resist cross-threading and enable faster installation
- Reliable torque transmission through standard external hex design compatible with common wrenching tools
- Precision thread engagement with Class 2B fit ensuring consistent performance and vibration resistance
- Industry-standard compliance meeting ASME B18.2.2 specifications for guaranteed dimensional accuracy
- Environmental regulation adherence with full REACH and RoHS 3 compliance for global supply chain integration
- Lightweight durability combining aluminum's strength-to-weight ratio with robust 1"-8 thread capacity
Professional Applications & Engineering Value
This 1"-8 UNC coarse thread hex nut delivers critical performance advantages where weight reduction and corrosion resistance are paramount. The 6061 aluminum construction provides excellent strength while eliminating rust concerns in marine, automotive, and aerospace applications. The coarse thread profile significantly reduces installation time and prevents galling in high-volume assembly operations. With external hex drive compatibility, maintenance personnel can quickly service equipment using standard tools. The nut's Class 2B thread fit maintains secure fastening under vibration while the ASME B18.2.2 compliance ensures perfect interchangeability with existing industrial components. These engineering features make it ideal for structural frameworks, machinery guards, and transportation equipment where reliable, lightweight fastening solutions are essential.
Specification Summary & Compliance
Manufactured to ASME B18.2.2 standards with Class 2B thread fit tolerance for precise engagement. Features 1"-8 UNC coarse threads with right-hand orientation and standard hex profile measuring 1-1/2" across flats and 55/64" height. Fully compliant with REACH (EC 1907/2006) regulations and RoHS 3 (2015/863/EU) directive with applicable exemptions for aluminum machining alloys.
