S-90128A628 3/8"-16 x 1 1/2" 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 tighter tolerances for secure, vibration-resistant assemblies, minimizing loosening over time.
- High hardness rating (Rockwell C37) offers excellent wear resistance, maintaining thread integrity during repeated use.
- Coarse UNC threading allows for quicker installation and easier alignment, saving time in assembly operations.
- Hex socket drive design enables high torque application with standard tools, ensuring tight fastening in confined spaces.
- Full threading along the 1 1/2" length provides consistent grip and adjustability across the entire fastener.
Professional Applications & Engineering Value
This Socket Head Cap Screw is engineered for demanding industrial applications where reliability and strength are critical. Constructed from zinc-plated alloy steel, it combats corrosion in environments exposed to moisture, chemicals, or outdoor elements. The UNC coarse thread and Class 3A fit ensure rapid, secure fastening in machinery, automotive assemblies, and heavy equipment, reducing installation time while providing vibration resistance. The hex drive allows for high torque application without slippage, making it ideal for tightly spaced components. Its 170,000 PSI tensile strength and Rockwell C37 hardness prevent stripping and deformation under heavy loads, offering long-term durability in structural and mechanical fastening tasks.
Specification Summary & Compliance
This fastener meets ASTM A574 specifications for high-strength socket head cap screws, ensuring consistent quality and performance. It features Class 3A thread fit for precise dimensional accuracy and UNC coarse threading (3/8"-16) in the inch system. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and safe for various industrial uses.
