S-92865A812 5/8"-11 x 4 1/2" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 120,000 psi tensile strength for reliable performance in demanding applications
• Superior corrosion resistance through zinc plating, extending service life in harsh industrial environments
• Optimized thread engagement with UNC coarse threads and Class 2A fit for faster assembly and secure fastening
• High-strength construction meeting Grade 5 specifications with Rockwell C25 hardness for consistent durability
• Efficient installation and removal using standard external hex drive with 15/16" head width for common tool compatibility
• Full-threaded design providing maximum grip length and uniform stress distribution along the entire 4½" shaft
• Industry-standard compliance ensuring interchangeability and reliability across industrial applications

Professional Applications & Engineering Value

This Grade 5 hex head screw delivers critical engineering solutions for heavy-duty assembly where vibration resistance and structural integrity are paramount. The zinc plated steel construction provides essential corrosion protection for outdoor equipment, machinery frames, and structural connections exposed to environmental elements. The 5/8"-11 UNC coarse thread configuration ensures rapid installation in thick materials while maintaining superior pull-out resistance. With fully threaded design and external hex drive, this fastener offers maximum clamping force distribution and compatibility with standard industrial tools, making it ideal for construction equipment, automotive assemblies, and industrial machinery where high tensile strength and reliable performance under stress are non-negotiable requirements.

Specification Summary & Compliance

Manufactured to precise Class 2A thread fit tolerances with UNC coarse thread specifications ensuring consistent performance across industrial applications. Complies with ASME B18.2.1 and SAE J429 standards for dimensional accuracy and mechanical properties. Meets environmental regulations including RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) requirements, ensuring safe use across various industrial sectors while maintaining superior mechanical characteristics.