S-90201A319 3/8"-16 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 demanding industrial applications
- Superior corrosion resistance through zinc yellow-chromate plating, extending service life in harsh environments
- High hardness rating of Rockwell C38 minimizes wear and deformation under heavy torque applications
- Reliable coarse threading (UNC) ensures quick assembly and reduced cross-threading risks in industrial settings
- Optimized partial threading provides superior clamping force distribution for structural connections
- Precise Class 2A thread fit guarantees consistent engagement and vibration resistance in machinery
- External hex drive design enables high-torque installation with standard tools for maintenance efficiency
Professional Applications & Engineering Value
Engineered for heavy-duty industrial applications, these Grade 9 hex head screws deliver exceptional performance in construction equipment, machinery assembly, and structural frameworks. The zinc yellow-chromate plated steel construction provides superior corrosion protection in challenging environments, while the 3/8"-16 UNC coarse thread design ensures rapid installation and reliable performance in high-vibration settings. The partially threaded configuration concentrates clamping force precisely where needed, preventing joint loosening in dynamic load conditions. With 180,000 psi tensile strength and Rockwell C38 hardness, these fasteners maintain integrity under extreme mechanical stress, making them ideal for critical connections requiring exceptional durability and long-term reliability.
Specification Summary & Compliance
Manufactured to precise Class 2A thread fit standards with UNC coarse threading (3/8"-16) and 1-1/2" length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Features external hex drive configuration with 9/16" head width and 9/32" head height for standard tool compatibility. Right-hand thread direction with minimum 1" thread length ensures proper engagement in various material thicknesses.
