S-91247A320 7/16"-20 x 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
- Superior load-bearing capacity with 120,000 psi tensile strength for demanding industrial applications
- Enhanced corrosion resistance through zinc plating that protects against rust in harsh environments
- Precise thread engagement with UNF fine threading and Class 2A fit ensuring vibration-resistant connections
- Optimized torque transmission through external hex drive design with 5/8" head width for secure installation
- Reliable mechanical properties backed by Grade 5 certification and Rockwell C25 hardness rating
- Versatile partial threading allowing for both clamping and alignment functions in assembly operations
- Industry compliance assurance meeting ASME B18.2.1 specifications and environmental regulations
Professional Applications & Engineering Value
This 7/16"-20 Grade 5 hex head screw delivers exceptional engineering value in heavy machinery, structural frameworks, and industrial equipment assemblies. The zinc-plated steel construction provides critical corrosion protection while maintaining the 120,000 psi tensile strength required for high-stress applications. The UNF fine threading with Class 2A thread fit ensures precise, vibration-resistant fastening in dynamic operating conditions. The external hex drive design facilitates efficient installation with standard tools, while the partially threaded configuration allows for optimal clamp load distribution. These industrial hex bolts are engineered to withstand repetitive stress cycles and maintain joint integrity in demanding environments from manufacturing plants to construction sites.
Specification Summary & Compliance
This fastener features precision 7/16"-20 UNF fine threading with Class 2A thread fit tolerance for consistent engagement. Manufacturing complies with ASME B18.2.1 specifications and SAE J429 Grade 5 standards, ensuring dimensional accuracy and mechanical performance. The product meets RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) environmental regulations, confirming adherence to international substance restriction requirements for industrial applications.
