S-90002A122 1/2"-13 x 1 1/4" ASME B18.2.1, SAE J429 High-Strength Steel Hex Head Screws with Material Certification
High-Strength Steel Hex Head Screws with Material Certification
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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
- Maximum load-bearing capacity with 150,000 psi tensile strength for critical structural applications
- Superior corrosion protection through zinc yellow-chromate plating in harsh industrial environments
- Enhanced durability with Rockwell C33 hardness to resist wear and deformation under stress
- Reliable fastening performance with Class 2A thread fit ensuring precise engagement and vibration resistance
- Quick installation using standard external hex drive and coarse UNC threads for efficient assembly
- Full-threaded design providing consistent clamping force along the entire 1-1/4" length
- Industry-standard compliance meeting ASME B18.2.1 and SAE J429 specifications for guaranteed quality
Professional Applications & Engineering Value
This Grade 8 hex head screw delivers exceptional engineering value in demanding industrial applications where failure is not an option. The steel construction with zinc yellow-chromate plating provides superior corrosion resistance for outdoor equipment, machinery, and structural frameworks exposed to environmental elements. The UNC coarse thread pattern with Class 2A fit ensures rapid installation and reliable performance in high-vibration environments, while the external hex drive allows for high torque application without stripping. Engineered for heavy machinery, construction equipment, and automotive assemblies, this fully threaded hex head bolt maintains integrity under extreme loads, preventing costly downtime and maintenance in critical fastening applications.
Specification Summary & Compliance
This industrial fastener features precise Class 2A thread fit tolerance for consistent engagement, UNC coarse threading (1/2"-13) with right-hand direction, and full threading along the 1-1/4" length. Manufactured to ASME B18.2.1 and SAE J429 specifications, ensuring dimensional accuracy and performance reliability. The zinc yellow-chromate plating provides RoHS and REACH compliant corrosion protection, while the Grade 8 classification guarantees mechanical properties including 150,000 psi tensile strength and Rockwell C33 hardness for industrial-grade applications.
