S-91274A016 6-32 x 5/8" ASME B18.3, ASTM A574, ASTM B117 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, minimizing failure risks.
- Zinc-flake coating on alloy steel provides superior corrosion resistance, extending service life in harsh industrial environments.
- Class 3A thread fit offers precise, tight tolerances for secure fastening and vibration resistance in critical assemblies.
- Rockwell C37 hardness enhances durability and wear resistance, reducing maintenance needs over time.
- Hex socket drive (7/64") allows for easy installation with standard tools, improving assembly efficiency.
- Coarse UNC threads facilitate quick engagement and disassembly, saving time in maintenance and repairs.
- Full compliance with ASME B18.3, ASTM A574, and ASTM B117 guarantees consistent quality and interoperability in regulated industries.
Professional Applications & Engineering Value
This 6-32 UNC thread socket head cap screw is engineered for demanding industrial applications where reliability and durability are paramount. The zinc-flake-coated alloy steel construction effectively combats corrosion, making it ideal for machinery, automotive, and aerospace components exposed to moisture or chemicals. With a coarse thread design and Class 3A fit, it ensures rapid, secure fastening in high-vibration environments, reducing the risk of loosening. The hex drive enables precise torque application, enhancing assembly accuracy in tight spaces. These features collectively address common engineering challenges like fastener fatigue, corrosion-induced failures, and installation inefficiencies, providing a robust solution for heavy-duty cap screws in critical systems.
Specification Summary & Compliance
This screw adheres to Class 3A thread fit per UNC standards, ensuring dimensional accuracy and reliable performance. It meets ASME B18.3 for socket head cap screws, ASTM A574 for alloy steel material, and ASTM B117 for salt spray testing, confirming corrosion resistance. Additionally, it is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally safe and sustainable industrial practices.
