S-92620A845 3/4"-10 x 2 1/2" ASME B18.2.1, SAE J429 High-Strength Grade 8 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 150,000 psi tensile strength for reliable performance in high-stress applications
• Superior corrosion resistance provided by zinc yellow-chromate plating, extending service life in demanding environments
• Optimized thread engagement through UNC coarse threading and Class 2A fit ensures secure fastening and vibration resistance
• Maximum torque transmission enabled by the external hex drive and substantial 1 1/8" head width for easy installation
• Enhanced durability from Rockwell C33 hardness maintains structural integrity under repeated stress
• Full-threaded design allows for complete engagement along the entire 2 1/2" length, providing uniform clamping force
• Industry-standard compliance with ASME B18.2.1, RoHS 3, and REACH ensures quality and environmental responsibility

Professional Applications & Engineering Value

This Grade 8 hex head screw delivers critical engineering solutions for heavy-duty industrial applications where failure is not an option. The steel construction with zinc yellow-chromate plating provides exceptional protection against corrosion in harsh environments, while the UNC coarse thread design ensures rapid installation and superior resistance to vibration loosening. The external hex drive configuration allows for high-torque applications common in construction equipment, machinery assembly, and structural frameworks. With fully threaded coverage and Class 2A thread fit, this fastener maintains consistent clamping force across the entire engagement length, preventing joint failure in critical connections. Engineered to meet the rigorous demands of industrial applications requiring ASME B18.2.1 compliance, this hex head screw provides reliable performance where safety and durability are paramount.

Specification Summary & Compliance

This fastener features precision Class 2A thread fit with 3/4"-10 UNC coarse thread specifications, manufactured to exacting dimensional standards. The product complies with ASME B18.2.1 mechanical requirements and SAE J429 Grade 8 strength classification. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring responsible manufacturing practices. The zinc yellow-chromate plating provides corrosion protection while maintaining the mechanical properties required for industrial applications.