S-94895A045 2"-4 1/2 Hex Nuts

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with Grade 8 strength classification, ensuring reliable performance in high-stress industrial environments
• Superior corrosion resistance from zinc yellow-chromate-plated steel construction, extending service life in harsh conditions
• Precise thread engagement with Class 2B thread fit for secure fastening and vibration resistance
• Easy installation and removal with standard external hex drive design compatible with common wrench tools
• Optimized for heavy machinery through coarse UNC threads that resist loosening under dynamic loads
• Dimensional consistency across 2"-4 1/2 size range with standard hex profile for uniform torque application
• Right-hand thread direction following conventional assembly practices for intuitive installation

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these Grade 8 hex nuts deliver critical performance where failure is not an option. The zinc yellow-chromate-plated steel construction provides a robust barrier against corrosion in manufacturing plants, construction sites, and outdoor equipment. The coarse UNC threads maintain their grip under constant vibration and dynamic loading conditions common in machinery assembly, structural steel connections, and transportation equipment. With Class 2B thread fit ensuring precise mating with corresponding bolts, these nuts eliminate play and distribute stress evenly across engaged threads. The external hex drive profile allows for high-torque installation using standard tools, making them ideal for maintenance operations requiring repeated disassembly and reassembly without compromising thread integrity.

Specification Summary & Compliance

Manufactured to exacting standards with Class 2B thread fit tolerance for consistent performance across the 2"-4 1/2 size range. These UNC coarse thread nuts comply with ASME B18.2.2 dimensional requirements and are produced from Grade 8 material meeting ASTM A563 specifications. The zinc yellow-chromate plating provides RoHS-compliant corrosion protection while maintaining electrical conductivity for grounding applications. Standard inch system measurements ensure compatibility with North American industrial equipment and replacement part inventories.