S-92620A922 7/8"-14 x 1 3/4" 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 harsh environments
• Precise thread engagement with Class 2A UNF fine threading ensuring secure, vibration-resistant connections
• Maximum hardness durability with Rockwell C33 rating for excellent wear resistance and reduced deformation under load
• Optimized installation efficiency through external hex drive design allowing high torque application with standard tools
• Industry-standard compliance meeting ASME B18.2.1 and SAE J429 specifications for guaranteed quality and interchangeability
• Full-thread coverage along the 1 3/4" length providing consistent clamping force throughout the entire engagement area

Professional Applications & Engineering Value

These Grade 8 hex head screws deliver critical performance in demanding industrial settings where failure is not an option. The combination of high-strength steel construction and UNF fine threading creates exceptional resistance to vibrational loosening, making them ideal for heavy machinery, structural assemblies, and equipment subjected to dynamic loads. The zinc yellow-chromate plating provides superior protection against corrosion in manufacturing environments, outdoor applications, and chemical exposure scenarios. With their external hex drive configuration, these fasteners enable efficient installation and removal using standard tools, reducing assembly time while maintaining the integrity of critical connections in construction, automotive, and industrial manufacturing applications.

Specification Summary & Compliance

This 7/8"-14 UNF hex head screw features precise Class 2A thread fit tolerances and fully threaded design with fine thread spacing for optimal load distribution. Manufactured to meet ASME B18.2.1 dimensional standards and SAE J429 Grade 8 mechanical properties, ensuring consistent performance and interchangeability. The fastener complies with industry specifications for dimensional accuracy and mechanical properties, providing reliable performance in critical applications requiring verified quality standards and material traceability.