S-90201A681 1"-8 x 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 heavy-duty applications
- Superior corrosion resistance provided by zinc yellow-chromate plating, extending service life in harsh environments
- Optimized thread engagement through UNC coarse threading and Class 2A fit for faster installation and secure fastening
- Enhanced durability from Rockwell C38 hardness, maintaining structural integrity under repeated stress
- Full-threaded design ensuring maximum grip strength along the entire 2" length for uniform load distribution
- External hex drive compatibility with standard 1-1/2" wrench sizes for straightforward installation and removal
- Regulatory compliance with RoHS 3 and REACH standards, meeting international environmental and safety requirements
Professional Applications & Engineering Value
These Grade 9 hex head screws deliver critical engineering solutions for industrial applications demanding high-strength fastening. The steel construction combined with zinc yellow-chromate plating provides exceptional protection against corrosion in manufacturing, construction, and heavy equipment environments. The 1"-8 UNC coarse thread design enables rapid assembly while maintaining vibration resistance, particularly valuable in structural applications and machinery where 180,000 psi tensile strength prevents joint failure under extreme loads. The external hex drive and substantial head dimensions ensure sufficient torque application without stripping, making these fully threaded screws ideal for critical connections in industrial machinery, structural steel frameworks, and heavy-duty equipment maintenance where reliability is paramount.
Specification Summary & Compliance
Manufactured to precise dimensional standards with Class 2A thread fit tolerance for consistent performance across applications. The UNC coarse thread specification (1"-8) ensures compatibility with standard industrial components. These hex head screws maintain full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to international environmental and safety standards for industrial fastener applications.
