S-95045A046 2"-4 1/2 Hex Nuts

Key Features & Benefits at a Glance

• Enhanced torque transmission with extra wide 3 1/8" hex profile for superior grip and reduced tool slippage
• Exceptional load-bearing capacity through Grade 5 steel construction for heavy-duty industrial applications
• Quick assembly efficiency with coarse UNC threading that resists cross-threading and speeds installation
• Reliable thread engagement ensured by Class 2B thread fit for consistent performance under vibration
• Superior corrosion resistance from quality steel material, extending service life in harsh environments
• Compliance with global standards including RoHS 3 and REACH for safe use in regulated industries
• Optimized for standard tools with external hex drive design compatible with common industrial wrenches

Professional Applications & Engineering Value

This Grade 5 steel hex nut delivers critical performance in demanding industrial settings where fastener failure is not an option. The extra wide profile (3 1/8") provides maximum surface contact for wrench engagement, significantly reducing rounding risks during high-torque applications. Engineered with coarse UNC threads (2"-4 1/2), it maintains secure connections in vibrating machinery while resisting loosening better than fine-thread alternatives. The Class 2B thread fit ensures consistent engagement without binding, making it ideal for structural steelwork, heavy equipment assembly, and infrastructure projects where reliability and quick installation are paramount. Its right-hand thread direction and external hex drive compatibility with standard tools streamline maintenance operations across manufacturing, construction, and transportation sectors.

Specification Summary & Compliance

This heavy-duty fastener features precise Class 2B thread fit per UNC standards with dimensions of 3 1/8" width and 1 31/32" height. Manufactured from Grade 5 steel for consistent strength performance, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material transparency. The inch-system coarse thread spacing and right-hand thread direction adhere to industrial fastener specifications for reliable interoperability in global projects.