S-91251A764 9/16"-12 x 4" 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.
- Superior corrosion resistance from the black-oxide finish extends service life in demanding industrial environments.
- Precise Class 3A thread fit guarantees secure, vibration-resistant connections, minimizing loosening over time.
- Fully threaded design provides consistent clamping force along the entire 4" length for uniform load distribution.
- High hardness (Rockwell C37) offers excellent wear resistance, maintaining thread integrity through repeated use.
- Hex socket drive (7/16") allows for high-torque installation with standard tools, ensuring efficient assembly.
- Compliance with RoHS 3 and REACH ensures environmental safety and regulatory acceptance for global supply chains.
Professional Applications & Engineering Value
Engineered for high-stress industrial applications, this socket head cap screw delivers exceptional reliability where standard fasteners fall short. The black-oxide alloy steel construction provides superior corrosion resistance, crucial for machinery exposed to moisture or chemicals. With a 9/16"-12 UNC coarse thread and Class 3A fit, it ensures rapid assembly and vibration resistance in heavy equipment, automotive systems, and structural frameworks. The fully threaded design allows for adjustable clamping in complex assemblies, while the hex drive facilitates high-torque tightening without stripping. Ideal for applications demanding 170,000 psi tensile strength and long-term durability under dynamic loads.
Specification Summary & Compliance
This socket head cap screw features a 9/16"-12 UNC coarse thread with Class 3A fit for precise thread engagement. Manufactured to ASTM A574 specifications, it ensures consistent quality and performance. 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.
