S-90494A234 9/16"-18 Hex Nuts

Key Features & Benefits at a Glance

• Enhanced torque transmission through the external hex drive design, ensuring secure tightening in confined spaces
• Superior thread engagement with Class 2B fit, providing reliable vibration resistance and reduced loosening risks
• Space-saving thin profile (5/16" height) ideal for applications with limited clearance without compromising strength
• Precision UNF fine threading (18 TPI) delivers better stress distribution and improved fatigue resistance compared to coarse threads
• Grade 2 steel construction offers excellent durability and corrosion resistance for general industrial applications
• Full regulatory compliance with RoHS 3 and REACH standards, ensuring environmental safety and global market acceptance
• Standard 7/8" width provides compatibility with common wrench sizes for easy installation and maintenance

Professional Applications & Engineering Value

This 9/16"-18 UNF thin hex nut addresses critical engineering challenges in industrial assembly where space constraints and vibration resistance are primary concerns. The Grade 2 steel construction provides optimal strength-to-weight ratio while the fine thread spacing ensures superior clamping force distribution across connected components. The Class 2B thread fit guarantees consistent performance in high-vibration environments common in machinery, automotive, and equipment manufacturing. The thin profile design makes it particularly valuable in compact assemblies where standard nuts would interfere with adjacent components, while maintaining full external hex drive functionality for reliable torque application during installation and maintenance cycles.

Specification Summary & Compliance

Manufactured to UNF thread standards with Class 2B thread fit tolerance ensuring precise engagement with mating components. The nut features 9/16"-18 fine thread configuration with dimensions of 7/8" width and 5/16" height. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting the latest substance restriction requirements. Manufactured from Grade 2 steel providing consistent mechanical properties for reliable performance in industrial fastening applications.