S-92620A802 5/8"-11 x 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 and Rockwell C33 hardness for reliable performance in high-stress applications
• Superior corrosion resistance provided by zinc yellow-chromate plating that extends service life in demanding industrial environments
• Optimized installation efficiency through external hex drive design that enables high-torque application with standard tools
• Precise thread engagement with UNC coarse threads and Class 2A fit ensuring consistent fastening and vibration resistance
• Full-threaded design offering maximum grip length and uniform stress distribution along the entire 2" length
• Heavy-duty construction meeting Grade 8 specifications for the most demanding mechanical and structural applications
• Regulatory compliance assurance with RoHS 3 and REACH standards for safe use across global markets

Professional Applications & Engineering Value

These Grade 8 hex head screws deliver critical engineering solutions where failure is not an option. The steel construction with zinc yellow-chromate plating provides exceptional corrosion protection in harsh environments including outdoor equipment, marine applications, and industrial machinery. The 5/8"-11 UNC coarse thread design ensures rapid installation and superior resistance to vibration loosening, while the external hex drive accommodates high torque requirements without stripping. With fully threaded configuration and Class 2A fit, these fasteners maintain consistent clamping force in heavy machinery, structural steel connections, and high-vibration equipment where reliability is paramount. The combination of 150,000 psi tensile strength and precise manufacturing standards makes these screws ideal for critical bolting applications across construction, manufacturing, and transportation sectors.

Specification Summary & Compliance

Manufactured to exacting ASME B18.2.1 and SAE J429 Grade 8 specifications, these hex head screws feature UNC coarse threads with Class 2A tolerance for precise fit and optimal performance. The inch system measurements include 5/8"-11 thread size with 2" length, 15/16" head width, and 27/64" head height. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental responsibility and global market acceptance for industrial fastener applications.