S-91274A296 3/8"-16 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, reducing the risk of fastener failure.
- Superior corrosion resistance from the zinc-flake coating protects against harsh industrial environments, extending service life.
- Precise Class 3A thread fit provides consistent engagement and vibration resistance, minimizing loosening in dynamic assemblies.
- High hardness (Rockwell C37) offers excellent wear resistance, maintaining thread integrity through repeated use.
- Coarse UNC threads enable quick and easy installation, saving time in assembly and maintenance operations.
- Fully threaded design allows for maximum adjustability and clamping force distribution along the entire length.
- Compliance with ASME B18.3 and ASTM A574 guarantees consistent quality and interchangeability for engineering projects.
Professional Applications & Engineering Value
This zinc-flake-coated alloy steel socket head cap screw is engineered to address critical challenges in demanding industrial settings. Its 3/8"-16 UNC coarse thread and Class 3A fit ensure secure fastening in high-vibration machinery, preventing unexpected downtime. The hex drive design allows for high torque application in confined spaces, making it ideal for heavy-duty equipment, automotive assemblies, and precision manufacturing. With a 170,000 psi tensile strength and Rockwell C37 hardness, it withstands extreme mechanical stresses while the corrosion-resistant coating protects against moisture and chemicals, reducing maintenance cycles and enhancing operational reliability in harsh environments.
Specification Summary & Compliance
This socket head cap screw features a 3/8"-16 UNC coarse thread with Class 3A dimensional accuracy, ensuring precise fit and performance. Manufactured in accordance with ASME B18.3 and ASTM A574 specifications, it guarantees consistent quality. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally responsible procurement and use in global markets.
