S-90128A710 1/2"-13 x 3/4" 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 with zinc plating protects against rust and extends service life in harsh industrial environments.
- Precision Class 3A thread fit provides secure, vibration-resistant connections, minimizing loosening in dynamic assemblies.
- High hardness (Rockwell C37) offers excellent wear resistance, maintaining thread integrity through repeated use.
- 3/8" hex drive design allows for easy installation and high torque application with standard tools, improving assembly efficiency.
- Fully threaded body ensures consistent clamping force along the entire length, ideal for adjustable and deep-set applications.
- Compliance with ASTM A574, RoHS 3, and REACH guarantees material quality and environmental safety for global supply chain requirements.
Professional Applications & Engineering Value
Engineered for demanding industrial applications, this zinc-plated alloy steel socket head cap screw addresses critical challenges in machinery, automotive, and heavy equipment assembly. The coarse UNC thread and Class 3A fit provide rapid installation and superior resistance to vibration loosening, a common issue in dynamic systems. With a 170,000 psi tensile strength and Rockwell C37 hardness, it withstands extreme loads and repetitive stress, reducing maintenance downtime. The fully threaded design ensures uniform load distribution, while the zinc plating offers reliable corrosion protection in humid or chemically exposed environments, making it an optimal choice for high-strength, durable fastening solutions.
Specification Summary & Compliance
This socket head cap screw features a 1/2"-13 UNC coarse thread with Class 3A precision fit and right-hand thread direction, ensuring dimensional accuracy per industry standards. Manufactured in compliance with ASTM A574 for consistent quality, it also meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and global industrial use.
