S-90201A638 3/4"-10 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 high-stress applications.
- Superior corrosion resistance from zinc yellow-chromate plating, extending service life in harsh industrial environments.
- Optimized torque transmission via the external hex drive and 1 1/8" head width, ensuring secure installation and removal.
- High durability and wear resistance with Rockwell C38 hardness, minimizing deformation under heavy loads.
- Wide compatibility and easy assembly with 3/4"-10 UNC coarse threads, ideal for quick fastening in various materials.
- Precise thread engagement through Class 2A thread fit, reducing the risk of cross-threading and ensuring consistent clamping force.
- Full threading along the 1 1/2" length provides uniform stress distribution and versatile positioning in assemblies.
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, this Grade 9 hex head screw addresses critical challenges in machinery, structural frameworks, and equipment requiring high tensile strength and corrosion resistance. The steel construction with zinc yellow-chromate plating combats rust and chemical exposure, while the UNC coarse thread design ensures rapid installation and reliable hold in coarse-grained materials. The external hex drive allows for high-torque application, making it suitable for construction, automotive, and manufacturing sectors where vibration resistance and long-term integrity are paramount. Its fully threaded profile enhances load distribution, preventing joint failure under dynamic stresses.
Specification Summary & Compliance
This fastener features a 3/4"-10 UNC coarse thread with Class 2A thread fit for precise dimensional accuracy and easy assembly. Manufactured from high-strength steel with a zinc yellow-chromate finish, it complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial markets. The right-hand thread direction and fully threaded design adhere to standard engineering practices for consistent performance.
