S-92620A634 3/8"-16 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 and Grade 8 classification, ensuring reliable performance in high-stress applications
• Superior corrosion resistance provided by zinc yellow-chromate plating, extending service life in demanding industrial environments
• Optimized installation efficiency through UNC coarse threading and Class 2A thread fit, enabling faster assembly with reduced cross-threading risk
• Maximum grip strength achieved through fully threaded design and external hex drive, distributing stress evenly across the entire fastener length
• Enhanced durability with Rockwell C33 hardness, maintaining structural integrity under repeated loading and vibration
• Industry-standard compatibility with 9/16" head width and 1/4" head height, ensuring perfect fit with standard wrenching tools
• Regulatory compliance assurance meeting ASME B18.2.1, SAE J429, RoHS 3, and REACH standards for global industrial applications

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these Grade 8 hex head screws deliver critical performance where failure is not an option. The steel construction combined with 150,000 PSI tensile strength provides exceptional resistance to shear and tensile forces in structural assemblies, machinery mounting, and equipment fabrication. The zinc yellow-chromate plating creates a robust barrier against corrosion in challenging environments including manufacturing facilities, outdoor installations, and high-humidity operations. The UNC coarse threading and Class 2A thread fit ensure rapid installation while maintaining precise tolerance control, reducing assembly time and minimizing the risk of thread damage during repeated disassembly and maintenance cycles. The fully threaded design maximizes engagement surface area, distributing load stresses evenly to prevent point failures in critical connections.

Specification Summary & Compliance

These 3/8"-16 UNC hex head screws maintain Class 2A thread fit tolerances with coarse threading and right-hand thread direction. Manufacturing complies with ASME B18.2.1 and SAE J429 Grade 8 specifications, ensuring dimensional accuracy and mechanical properties. Environmental compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) standards, confirming restriction of hazardous substances for global industrial use.