S-90201A312 3/8"-16 x 3/4" 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 capability with Grade 9 classification and 180,000 psi tensile strength for high-stress applications
- Superior corrosion resistance provided by zinc yellow-chromate plating, extending service life in harsh environments
- Optimized installation efficiency through external hex drive design and coarse UNC threading for faster assembly
- Precise thread engagement ensured by Class 2A fit tolerance, reducing cross-threading risks
- Maximum grip strength from fully threaded design along the entire 3/4" length
- Enhanced durability with Rockwell C38 hardness rating, resisting deformation under heavy loads
- Regulatory compliance meeting RoHS 3 and REACH standards for global industrial applications
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these Grade 9 hex head screws deliver critical performance where failure is not an option. The steel construction combined with zinc yellow-chromate plating creates a robust fastener capable of withstanding corrosive environments while maintaining structural integrity. The 3/8"-16 UNC coarse thread configuration ensures rapid installation in heavy machinery, construction equipment, and structural assemblies where vibration resistance is paramount. With fully threaded design and external hex drive, these screws provide uniform clamping force and secure fastening in high-vibration settings, solving common loosening issues in industrial equipment and critical infrastructure projects.
Specification Summary & Compliance
This hex head screw features 3/8"-16 UNC threading with Class 2A fit tolerance for precise engagement, manufactured to Grade 9 strength standards with 180,000 psi tensile strength and Rockwell C38 hardness. The fastener complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global industrial markets and restricted substance requirements.
