S-90128A624 3/8"-16 x 1" ASTM A574 Alloy Steel Socket Head Screws
Alloy Steel Socket 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 170,000 PSI ensures reliable performance in high-stress applications, reducing the risk of fastener failure.
- Superior corrosion resistance from zinc plating protects against rust and extends service life in harsh industrial environments.
- Precise Class 3A thread fit provides excellent engagement and vibration resistance, minimizing loosening in dynamic assemblies.
- Hex socket drive design allows for high torque application and easy installation in confined spaces with standard tools.
- Fully threaded body offers consistent clamping force along the entire length, enhancing joint stability.
- High hardness (Rockwell C37) increases wear resistance and durability under repetitive loading conditions.
- Compliance with ASTM A574, RoHS 3, and REACH ensures material quality and environmental safety for global supply chain integration.
Professional Applications & Engineering Value
This 3/8"-16 UNC Socket Head Cap Screw is engineered to address critical challenges in heavy-duty machinery, automotive, and aerospace assemblies. The zinc-plated alloy steel construction combats corrosion in humid or chemically aggressive settings, while the coarse UNC thread and Class 3A fit deliver superior resistance to vibrational loosening—common in engines and moving parts. Its fully threaded design ensures uniform stress distribution, preventing joint failure in high-load scenarios. With a hex drive for secure tool engagement, it simplifies maintenance in tight spaces, making it ideal for industrial fastening where reliability and compliance with ASTM A574 are non-negotiable.
Specification Summary & Compliance
This fastener adheres to UNC coarse thread standards with a Class 3A thread fit for precision and durability. It meets ASTM A574 specifications for high-strength socket head cap screws, ensuring consistent manufacturing quality. Additionally, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its safety and environmental responsibility in industrial use.
