S-94811A255 7/8"-9 ASME B18.2.2 Hex Nuts

Key Features & Benefits at a Glance

• Superior load distribution thanks to the extra wide hex profile that prevents surface damage and provides enhanced gripping surface
• Exceptional corrosion resistance with zinc-plated steel construction, ensuring long-term reliability in harsh industrial environments
• Reliable coarse thread engagement with UNC 7/8"-9 configuration for faster assembly and reduced cross-threading risks
• Precision thread fit meeting Class 2B specifications for consistent performance and secure fastening in demanding applications
• Industry-standard compliance with ASME B18.2.2 specifications, guaranteeing dimensional accuracy and interchangeability
• Environmental regulation compliance with RoHS 3 and REACH standards, making them suitable for global industrial supply chains
• Optimized external hex drive design for easy installation with standard tools while maintaining high torque capability

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these 7/8"-9 UNC coarse thread hex nuts solve critical fastening challenges where vibration resistance and load distribution are paramount. The zinc-plated steel construction provides essential corrosion protection for outdoor equipment, machinery, and structural assemblies exposed to moisture and chemicals. The extra wide profile significantly increases bearing surface area, preventing material deformation under high clamping forces and distributing stress more effectively across joined components. This design is particularly valuable in construction, heavy machinery, and transportation equipment where reliable fastening solutions must withstand dynamic loads and vibration. The coarse thread pitch ensures quick installation and disassembly while maintaining strong holding power, reducing assembly time and improving maintenance efficiency in industrial settings.

Specification Summary & Compliance

This extra wide hex nut features precise Class 2B thread fit with 7/8"-9 UNC coarse threads in right-hand direction, manufactured to exact ASME B18.2.2 dimensional standards. Critical dimensions include 1 7/16" width and 55/64" height for consistent performance. The product fully complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors without hazardous substance restrictions.