S-91247A233 3/8"-24 x 3 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
- Superior tensile strength with 120,000 psi rating ensures reliable performance in high-stress applications
- Enhanced corrosion resistance through zinc plating protects against environmental degradation
- Precise Class 2A thread fit provides consistent engagement and reduces assembly issues
- Grade 5 steel construction delivers optimal balance of strength and durability for industrial use
- External hex drive design allows for high-torque installation with standard tools
- UNF fine threading offers superior vibration resistance compared to coarse threads
- Partial threading configuration provides optimal clamp load distribution
Professional Applications & Engineering Value
These Grade 5 hex head screws with 3/8"-24 UNF fine threads are engineered to address critical fastening challenges in industrial environments. The zinc plated steel construction combats corrosion in demanding applications while maintaining structural integrity. The external hex drive enables high-torque installation without stripping, making them ideal for machinery assembly, structural frameworks, and heavy equipment maintenance. With Rockwell C25 hardness and controlled partial threading, these fasteners prevent thread damage during repeated disassembly while providing superior vibration resistance in dynamic load conditions. The combination of 120,000 psi tensile strength and precise Class 2A thread fit ensures reliable performance in automotive, construction, and manufacturing applications where failure is not an option.
Specification Summary & Compliance
This fastener features 3/8"-24 UNF fine threads with Class 2A thread fit tolerance for precise engagement. Manufacturing complies with ASME B18.2.1 and SAE J429 Grade 5 specifications. The product meets RoHS 3 (2015/863/EU) compliance standards and is REACH (EC 1907/2006) compliant, ensuring environmental responsibility and regulatory adherence for global industrial applications.
