S-90499A857 1 1/8"-7 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Grade 8 strength classification, ensuring reliable performance under high-stress conditions
• Superior thread engagement through Class 2B thread fit, providing consistent clamping force and vibration resistance
• Optimized installation efficiency with coarse UNC threading for faster assembly in industrial applications
• Enhanced durability from carbon steel construction, offering excellent resistance to wear and corrosion
• Secure torque transmission via standard external hex drive design, compatible with common wrenching tools
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe industrial usage
• Precision dimensional consistency with 1-11/16" width and 31/32" height for reliable fit in assembly operations

Professional Applications & Engineering Value

This Grade 8 steel hex nut delivers critical performance advantages in demanding industrial environments where fastener failure is not an option. The 1-1/8"-7 UNC coarse thread configuration enables rapid installation while maintaining secure connections in heavy machinery, structural steel frameworks, and high-vibration equipment. The Class 2B thread fit provides optimal clearance for smooth assembly without compromising joint integrity, significantly reducing installation time in production lines. Manufactured from high-strength carbon steel with external hex drive compatibility, this fastener withstands extreme tensile loads while remaining accessible for maintenance with standard tools. Its compliance with international environmental regulations makes it suitable for global industrial supply chains requiring verified material safety.

Specification Summary & Compliance

This heavy-duty hex nut maintains Class 2B thread tolerances per Unified National Coarse (UNC) standards, ensuring precise thread engagement across compatible bolt assemblies. The manufacturing process adheres to Grade 8 strength requirements with dimensional specifications of 1-11/16" width and 31/32" height. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to international environmental and safety standards for industrial components.