S-90128A724 1/2"-13 x 3" 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.
- Zinc-plated alloy steel construction offers superior corrosion resistance, extending service life in harsh industrial environments.
- Class 3A thread fit provides precise, secure engagement for vibration-resistant assemblies and improved joint integrity.
- Partially threaded design allows for controlled clamping force and easier alignment in machinery and structural applications.
- Rockwell C37 hardness delivers excellent wear resistance, maintaining thread integrity through repeated use and disassembly.
- 3/8" hex drive socket head enables high-torque installation with standard tools, speeding up assembly processes.
- Compliance with ASTM A574, RoHS 3, and REACH ensures material consistency and environmental safety for global industrial use.
Professional Applications & Engineering Value
These socket head cap screws are engineered to address critical fastening challenges in demanding sectors like industrial machinery, automotive assemblies, and heavy equipment. The zinc-plated alloy steel material combats corrosion, while the 1/2"-13 UNC coarse thread and Class 3A fit provide rapid installation and superior vibration resistance. The partially threaded rod design concentrates clamping force where needed, preventing loosening under dynamic loads. With a 170,000 PSI tensile strength and Rockwell C37 hardness, these screws withstand extreme mechanical stress, making them ideal for high-torque applications requiring reliable, durable fastening solutions.
Specification Summary & Compliance
This socket head cap screw features a 1/2"-13 UNC coarse thread with Class 3A thread fit for precise dimensional accuracy. It meets ASTM A574 specifications for high-strength alloy steel socket head cap screws, ensuring consistent manufacturing quality. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial applications.
