S-91247A234 3/8"-24 x 3 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
- Superior load-bearing capacity with Grade 5 classification and 120,000 psi tensile strength for demanding industrial applications
- Enhanced corrosion resistance through zinc plating, extending service life in harsh environments
- Precise thread engagement with UNF fine threading and Class 2A fit ensuring reliable, vibration-resistant connections
- Optimized torque transmission via external hex drive design for secure installation with standard tools
- Partial threading design providing both gripping strength and clearance where needed
- Industry-standard compliance meeting ASME B18.2.1 and SAE J429 specifications for guaranteed interoperability
- Environmental regulation adherence with RoHS 3 and REACH compliance for global supply chain compatibility
Professional Applications & Engineering Value
This Grade 5 hex head screw delivers exceptional engineering value through its zinc plated steel construction and 3/8"-24 UNF fine threading. The combination provides critical corrosion protection while maintaining 120,000 psi tensile strength for heavy machinery, structural assemblies, and equipment manufacturing. The external hex drive ensures maximum torque application without stripping, while the partially threaded design allows for both clamping force and alignment flexibility. These industrial fasteners solve common challenges of joint integrity, vibration loosening, and environmental degradation in manufacturing, construction, and automotive applications where inch system components are specified.
Specification Summary & Compliance
Manufactured to precise Class 2A thread fit tolerances with UNF thread type and right hand thread direction. Complies with ASME B18.2.1 dimensional standards and SAE J429 material specifications. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Features Rockwell C25 hardness rating and verified 120,000 psi tensile strength performance.
