S-90201A418 1/2"-13 x 1 1/2" 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 demanding applications
- Superior corrosion resistance through zinc yellow-chromate plating that protects against harsh industrial environments
- Optimized installation efficiency with external hex drive design providing secure tool engagement and torque transmission
- Enhanced thread reliability featuring Class 2A thread fit and coarse UNC threading for consistent engagement and vibration resistance
- Maximum fastening coverage with fully threaded design ensuring complete grip along the entire 1-1/2" length
- Long-term mechanical integrity maintained through Rockwell C38 hardness for sustained performance under stress
- Regulatory compliance assurance meeting RoHS 3 and REACH standards for environmentally responsible manufacturing
Professional Applications & Engineering Value
These Grade 9 hex head screws deliver critical engineering solutions where high tensile strength and corrosion resistance are paramount. The combination of steel construction with zinc yellow-chromate plating addresses common industrial challenges including structural fatigue, environmental degradation, and maintenance frequency. The 1/2"-13 UNC coarse threading with Class 2A fit ensures rapid installation and reliable performance in heavy machinery, construction frameworks, and industrial equipment where vibration resistance and load distribution are critical. The external hex drive design facilitates efficient assembly in confined spaces while maintaining torque integrity throughout the fastening process.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit and UNC thread form ensuring interchangeability and consistent performance. These fully threaded fasteners maintain strict compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to international environmental and safety standards. The Grade 9 classification and Rockwell C38 hardness validate mechanical properties suitable for critical applications requiring verified material performance.
