S-90128A577 1/4"-20 x 6" 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-plated alloy steel construction extends service life in demanding industrial environments.
- Precise Class 3A thread fit provides excellent engagement and vibration resistance, maintaining secure connections.
- Hex socket drive design allows for high-torque installation and easy access in confined spaces.
- Partially threaded shank offers optimal grip and clamping force for specific assembly requirements.
- Compliance with ASTM A574 guarantees consistent quality and mechanical properties for engineering applications.
- RoHS 3 and REACH compliance ensures environmental responsibility and regulatory adherence for global supply chains.
Professional Applications & Engineering Value
These socket head cap screws are engineered for heavy-duty industrial applications where reliability and strength are critical. The zinc-plated alloy steel construction provides excellent corrosion protection, while the UNC coarse thread and Class 3A thread fit ensure secure fastening in high-vibration environments. The hex drive design enables high torque application without slippage, making them ideal for machinery, automotive assemblies, and structural frameworks. With 170,000 psi tensile strength and Rockwell C37 hardness, these screws maintain integrity under extreme loads, solving common failure points in demanding applications.
Specification Summary & Compliance
This 1/4"-20 UNC socket head cap screw features Class 3A thread fit for precision engagement, coarse thread spacing, and right-hand thread direction. Manufactured to ASTM A574 specifications, it meets rigorous mechanical property requirements. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for industrial use.
