S-90128A726 1/2"-13 x 3 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.
- Zinc-plated alloy steel construction provides excellent corrosion resistance, extending service life in harsh industrial environments.
- Class 3A thread fit offers tighter tolerances for precise, secure fastening with minimal backlash in critical assemblies.
- Partially threaded design allows for controlled clamping force and easier alignment in components requiring specific grip lengths.
- Coarse UNC threading enables quick installation and removal, saving time in maintenance and assembly operations.
- 3/8" hex drive socket head facilitates high-torque application with standard tools, preventing stripping and ensuring efficient fastening.
- Rockwell C37 hardness maintains structural integrity under heavy loads, offering long-term durability and wear resistance.
Professional Applications & Engineering Value
Engineered for demanding industrial settings, this Socket Head Cap Screw delivers robust performance where reliability is non-negotiable. The zinc-plated alloy steel material combats corrosion in exposed or humid conditions, while the coarse UNC thread and Class 3A fit provide superior grip in machinery, automotive, and construction assemblies. Its partially threaded rod design ensures optimal stress distribution, preventing loosening under vibration. Ideal for heavy-duty fastening in equipment frames, hydraulic systems, and structural supports, this screw addresses common issues like thread wear and installation inefficiency, offering a dependable solution for engineers prioritizing safety and longevity.
Specification Summary & Compliance
This screw adheres to precise dimensional standards, including Class 3A thread fit for accuracy and UNC coarse threading with a size of 1/2"-13. Manufactured in compliance with ASTM A574 specifications, it ensures consistent quality and performance. Additionally, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental and safety adherence for global industrial use.
