S-91251A624 3/8"-16 x 1" 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 under high-stress conditions, reducing the risk of fastener failure.
- Corrosion-resistant black-oxide coating on alloy steel enhances durability and longevity in harsh industrial environments.
- Precise Class 3A thread fit provides superior engagement and vibration resistance, minimizing loosening over time.
- 5/16" hex drive design allows for secure, high-torque installation with standard tools, improving assembly efficiency.
- Rockwell C37 hardness offers excellent wear resistance, maintaining thread integrity through repeated use.
- Fully threaded shank ensures consistent clamping force along the entire 1" length for uniform load distribution.
- Compliance with RoHS 3 and REACH standards guarantees environmental safety and regulatory acceptance for global supply chains.
Professional Applications & Engineering Value
Engineered for demanding industrial applications, these black-oxide alloy steel socket head cap screws address critical challenges in machinery assembly, automotive systems, and heavy equipment. The 3/8"-16 UNC coarse thread and Class 3A fit provide rapid installation and superior resistance to vibrational loosening, a common issue in dynamic environments. The corrosion-resistant coating extends service life in humid or chemically exposed settings, while the 170,000 PSI tensile strength ensures structural integrity under extreme loads. Ideal for high-torque applications requiring reliable fastening, these screws reduce maintenance needs and downtime, delivering consistent performance in industrial fastening solutions.
Specification Summary & Compliance
This socket head cap screw features a 3/8"-16 UNC coarse thread with Class 3A precision fit for accurate engagement. Manufactured to ASTM A574 specifications, it ensures dimensional consistency and mechanical reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting environmental and safety standards for industrial use.
