S-90201A684 1"-8 x 5" 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 tensile strength of 180,000 psi ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- High hardness rating (Rockwell C38) provides superior resistance to wear and deformation, extending service life in demanding environments.
- Zinc yellow-chromate plating offers excellent corrosion resistance, protecting the screw from rust and degradation in industrial settings.
- Coarse UNC thread with Class 2A fit allows for quick and easy installation while maintaining secure fastening and vibration resistance.
- Partially threaded design enables precise clamping force control, ideal for applications requiring specific grip lengths.
- External hex head drive facilitates straightforward installation and removal with standard tools, improving assembly efficiency.
- Compliance with RoHS 3 and REACH regulations ensures environmental safety and suitability for global industrial supply chains.
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, this Grade 9 hex head screw combines high tensile strength and Rockwell C38 hardness to solve critical challenges in construction, machinery, and structural assemblies. The 1"-8 UNC coarse thread with Class 2A fit ensures rapid installation and robust holding power, minimizing loosening under vibration. Its zinc yellow-chromate plating provides a durable barrier against corrosion, making it suitable for harsh environments. The partially threaded shank allows for optimized load distribution, reducing stress concentrations and enhancing joint integrity in demanding setups like heavy equipment and infrastructure projects.
Specification Summary & Compliance
This screw adheres to inch system dimensions with a Class 2A thread fit for precise tolerance, ensuring compatibility with standard UNC nuts and threaded holes. It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming it is free of hazardous substances and safe for industrial use. Manufactured from steel with a zinc yellow-chromate finish, it delivers consistent performance in line with industry standards for high-strength fasteners.
