S-90498A030 5/16"-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
- Enhanced torque transmission with extra wide profile for superior grip and reduced slipping during installation
- Exceptional durability through high-strength steel construction that withstands heavy loads and vibration
- Reliable thread engagement with Class 2B fit ensuring consistent performance in demanding applications
- Quick assembly efficiency thanks to coarse UNC thread spacing that speeds up installation processes
- Industry-standard compatibility meeting ASME B18.2.2 specifications for seamless integration with existing systems
- Environmental compliance assurance with RoHS 3 and REACH compliance for global manufacturing requirements
- Optimized wrench clearance with 9/16" width providing ample tool access in confined spaces
Professional Applications & Engineering Value
This 5/16"-18 UNC hex nut delivers critical engineering solutions for heavy-duty industrial applications where fastener failure is not an option. The extra wide profile combined with coarse thread spacing provides superior resistance to vibration loosening, making it ideal for machinery, structural assemblies, and equipment subjected to dynamic loads. Manufactured from high-strength steel with precise Class 2B thread fit, this fastener maintains clamping force integrity under extreme conditions. The external hex drive design ensures maximum torque application without stripping, while compliance with ASME B18.2.2 standards guarantees dimensional accuracy and interchangeability across industrial systems.
Specification Summary & Compliance
This hex nut features 5/16"-18 UNC coarse threads with Class 2B thread fit per ASME B18.2.2 specifications, ensuring precise dimensional tolerances for reliable performance. The fastener measures 9/16" in width and 19/64" in height with right-hand thread direction. Manufacturing and material compliance includes full adherence to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, making it suitable for global industrial applications requiring environmental compliance.
