S-92620A707 1/2"-13 x 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 harsh environments
• Maximum hardness and durability with Rockwell C33 hardness rating, resisting deformation under heavy loads
• Optimized thread engagement through UNC coarse threading and Class 2A fit, ensuring secure fastening and easy installation
• Full-length threading for consistent grip strength along the entire fastener length
• Heavy-duty external hex drive design allowing for high torque application and secure tool engagement
• Industry-standard compliance meeting ASME B18.2.1 and SAE J429 specifications for guaranteed quality and interchangeability

Professional Applications & Engineering Value

These Grade 8 hex head screws deliver exceptional engineering value in demanding industrial applications where failure is not an option. The high-strength steel construction combined with 150,000 psi tensile strength makes them ideal for heavy machinery, structural steel connections, and equipment requiring reliable high-strength fastening solutions. The zinc yellow-chromate plating provides superior corrosion protection, extending service life in outdoor applications or environments with moisture exposure. The 1/2"-13 UNC coarse thread design ensures quick assembly and disassembly while maintaining secure connections, and the external hex drive allows for high torque application without stripping. These industrial-grade fasteners solve critical engineering challenges by providing predictable performance under extreme loads while meeting stringent industry standards.

Specification Summary & Compliance

This Grade 8 hex head screw features precise Class 2A thread fit tolerance for optimal assembly performance. The 1/2"-13 UNC coarse thread configuration follows standardized threading specifications, while the fully threaded design ensures maximum engagement. Manufactured in compliance with ASME B18.2.1 and SAE J429 specifications, these fasteners guarantee dimensional accuracy and mechanical properties. The zinc yellow-chromate plating meets industry standards for corrosion protection, providing reliable performance in various industrial environments while maintaining the required mechanical properties of Grade 8 fasteners.