S-90201A345 3/8"-16 x 6" Extreme-Strength Grade 9 Steel Hex Head Screws
Extreme-Strength Grade 9 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 capacity with 180,000 psi tensile strength for reliable performance in high-stress applications
- Superior corrosion resistance provided by zinc yellow-chromate plating, extending service life in demanding environments
- Optimized installation efficiency through external hex drive design that enables secure tool engagement and high torque application
- Enhanced mechanical durability with Rockwell C38 hardness that maintains structural integrity under repeated stress
- Precision thread engagement with Class 2A UNC coarse threads ensuring consistent fastening and vibration resistance
- Strategic partial threading allowing for both secure clamping and adjustment flexibility in assembly applications
- Regulatory compliance assurance meeting RoHS 3 and REACH standards for environmental and safety requirements
Professional Applications & Engineering Value
These Grade 9 hex head screws deliver critical engineering solutions for heavy-duty industrial applications where failure is not an option. The zinc yellow-chromate plated steel construction provides superior corrosion protection in harsh environments, while the 180,000 psi tensile strength and Rockwell C38 hardness ensure structural integrity under extreme mechanical stress. The 3/8"-16 UNC coarse threading with Class 2A fit offers rapid installation and reliable vibration resistance, making these partially threaded fasteners ideal for construction equipment, machinery assembly, and structural frameworks. The external hex drive design accommodates high torque applications, ensuring secure fastening in critical joints where safety and performance are paramount.
Specification Summary & Compliance
This 6-inch hex head screw features precise 3/8"-16 UNC coarse threading with Class 2A thread fit per ASME B1.1 standards, ensuring dimensional accuracy and compatibility. The fastener maintains Grade 9 strength classification with 180,000 psi tensile strength and Rockwell C38 hardness. Manufacturing compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming the absence of restricted substances for industrial safety requirements.
