S-92865A328 7/16"-20 x 4 1/2" 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 capability with 120,000 psi tensile strength for demanding structural and mechanical assemblies
- Enhanced corrosion resistance through zinc plating, extending service life in harsh industrial environments
- Precision thread engagement with UNF fine spacing and Class 2A fit ensuring vibration-resistant, secure fastening
- Optimized torque transmission via external hex drive and standardized head dimensions for efficient installation
- Consistent mechanical properties meeting Grade 5 requirements with Rockwell C25 hardness for reliable performance
- Full threading design providing maximum grip length and uniform stress distribution across the entire fastener
- Regulatory compliance assurance with ASME B18.2.1/SAE J429 specifications and RoHS 3 environmental standards
Professional Applications & Engineering Value
This Grade 5 steel hex head screw delivers critical performance in heavy machinery, structural steel connections, and industrial equipment where high tensile strength and vibration resistance are paramount. The UNF fine thread configuration with Class 2A fit maintains clamping force under dynamic loads, while the zinc plating provides essential corrosion protection in manufacturing facilities and outdoor applications. The external hex drive and fully threaded design enable rapid installation and maximum thread engagement, making these industrial fasteners ideal for construction, automotive, and machinery assembly where reliability cannot be compromised.
Specification Summary & Compliance
Manufactured to exacting dimensional standards with Class 2A thread fit tolerances and UNF thread form specifications. Complies with ASME B18.2.1 and SAE J429 mechanical and dimensional requirements for hex head screws. Meets RoHS 3 (2015/863/EU) compliance for restricted substance control. Features Grade 5 strength classification with verified 120,000 psi tensile strength and Rockwell C25 hardness properties.
