S-92865A883 7/8"-9 x 2 3/4" ASME B18.2.1, SAE J429 Medium-Strength Grade 5 Steel Hex Head Screws
Medium-Strength Grade 5 Steel Hex Head Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Exceptional load-bearing capacity with 120,000 psi tensile strength for reliable performance in demanding applications
- Superior corrosion resistance through zinc plating that protects against rust in industrial environments
- Optimized thread engagement with UNC coarse spacing and Class 2A fit for faster assembly and secure fastening
- Enhanced torque transmission through the external hex drive design that prevents tool slippage during installation
- Consistent mechanical properties with Rockwell C25 hardness ensuring dimensional stability under stress
- Full threading coverage along the 2-3/4" length provides maximum grip strength across the entire fastener
- Industry-standard compliance meeting ASME B18.2.1 and SAE J429 specifications for guaranteed interoperability
Professional Applications & Engineering Value
This Grade 5 hex head screw delivers critical performance advantages for heavy machinery, structural steel connections, and industrial equipment assembly. The zinc plated steel construction provides essential corrosion protection in challenging environments while maintaining the 120,000 psi tensile strength required for high-stress applications. The UNC coarse thread configuration ensures rapid installation and superior resistance to vibration loosening, making it ideal for construction, manufacturing, and automotive applications where reliability is paramount. The external hex drive design accommodates standard tools for efficient maintenance and disassembly cycles, while the fully threaded design maximizes clamping force distribution across connected components.
Specification Summary & Compliance
Manufactured to precise Class 2A thread fit tolerances with 7/8"-9 UNC coarse thread specifications. Complies with ASME B18.2.1 and SAE J429 standards for dimensional accuracy and mechanical properties. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental compliance requirements. The inch system measurements ensure compatibility with North American industrial standards and replacement applications.
