S-92620A926 7/8"-14 x 2 1/4" 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 industrial applications
• Superior corrosion resistance through zinc yellow-chromate plating that extends service life in harsh environments
• Precision thread engagement with Class 2A UNF fine threads ensuring secure fastening and vibration resistance
• Maximum hardness durability at Rockwell C33 hardness for maintained performance under repeated use
• Optimal torque transmission through the external hex drive design for easy installation with standard tools
• Full-thread coverage along the 2 1/4" length provides consistent clamping force across the entire fastener
• Heavy-duty construction meeting Grade 8 specifications for the most demanding mechanical applications

Professional Applications & Engineering Value

This Grade 8 hex head screw delivers critical performance where failure is not an option. The combination of high-strength steel and 7/8"-14 UNF fine threading provides superior resistance to vibration loosening in heavy machinery, construction equipment, and structural assemblies. The zinc yellow-chromate plating creates a protective barrier against corrosion in outdoor or chemically aggressive environments, significantly extending maintenance intervals. With fully threaded design and external hex drive, installation becomes efficient while maintaining consistent clamping force across the entire 2 1/4" length. These industrial hex bolts solve common engineering challenges of joint integrity, material fatigue, and environmental degradation in critical fastening applications.

Specification Summary & Compliance

Manufactured to exacting Class 2A thread fit tolerances with 7/8"-14 UNF fine threads ensuring precision engagement. Complies with ASME B18.2.1 and SAE J429 specifications for dimensional accuracy and mechanical properties. Meets environmental standards including RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance for restricted substance control. The inch system measurement ensures compatibility with North American industrial equipment and replacement part requirements.