S-90128A636 3/8"-16 x 3" 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.
- Class 3A thread fit provides superior precision and tight tolerances for secure, vibration-resistant assemblies in demanding environments.
- Zinc-plated alloy steel construction offers excellent corrosion resistance, extending service life and reducing maintenance needs.
- Rockwell C37 hardness delivers outstanding durability and wear resistance, maintaining integrity under repeated use.
- Hex drive (5/16") design allows for easy installation and removal with standard tools, improving assembly efficiency.
- Coarse UNC threading ensures quick engagement and strong holding power, ideal for industrial and heavy-duty applications.
- Compliance with ASTM A574, RoHS 3, and REACH guarantees adherence to industry standards and environmental regulations for safe, reliable use.
Professional Applications & Engineering Value
This 3/8"-16 UNC Socket Head Cap Screw is engineered to address critical challenges in industrial settings, such as vibration loosening and material fatigue. Crafted from zinc-plated alloy steel, it combines high tensile strength (170,000 PSI) and Rockwell C37 hardness to withstand extreme loads and repetitive stress, making it ideal for machinery, automotive, and construction applications. The Class 3A thread fit and coarse UNC thread provide secure fastening in high-vibration environments, while the hex drive design ensures straightforward installation with common tools. By meeting ASTM A574 specifications, it delivers consistent performance and reliability, reducing downtime and maintenance costs in professional engineering projects.
Specification Summary & Compliance
This screw features precise Class 3A thread fit per UNC standards, with a thread size of 3/8"-16 and coarse spacing for robust engagement. Dimensions include a 3" length, 9/16" head diameter, and 5/16" hex drive. It complies with ASTM A574 for material and manufacturing quality, and is RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring environmental safety and regulatory adherence in industrial use.
