S-90128A712 1/2"-13 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 under high-stress conditions, reducing the risk of fastener failure.
- Superior corrosion resistance from 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 applications.
- High hardness (Rockwell C37) offers excellent wear resistance, maintaining thread integrity through repeated use.
- Coarse UNC threads enable quick and easy installation, saving time during assembly and maintenance.
- Fully threaded design allows for consistent clamping force along the entire length, enhancing joint stability.
- Compliance with ASTM A574, RoHS 3, and REACH ensures material quality and environmental safety for global supply chain requirements.
Professional Applications & Engineering Value
These zinc-plated alloy steel socket head cap screws are engineered to address common industrial challenges such as vibration-induced loosening and corrosion in demanding environments. The coarse UNC thread and Class 3A fit provide superior grip and alignment in heavy machinery, automotive assemblies, and construction equipment, where precision and reliability are critical. The hex drive design allows for high torque application with standard tools, ensuring secure fastening in confined spaces. Ideal for applications requiring high tensile strength and durability, these screws reduce maintenance downtime and enhance the longevity of mechanical systems, making them a trusted choice for engineers and OEMs.
Specification Summary & Compliance
This product features a 1/2"-13 UNC coarse thread with Class 3A thread fit for precise engagement and consistent performance. Manufactured to ASTM A574 specifications, it ensures high-quality material and dimensional accuracy. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it meets environmental and safety standards for industrial use worldwide.
