S-91251A749 2-64 x 1/2" 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.
- Superior corrosion resistance from the black-oxide finish prolongs service life in harsh industrial environments, minimizing maintenance needs.
- Precise Class 3A thread fit guarantees tight, secure fastening with minimal backlash, enhancing assembly accuracy and stability.
- Fine UNF threads provide improved load distribution and vibration resistance, ideal for precision equipment and machinery.
- Fully threaded design allows for consistent engagement along the entire length, offering flexibility in adjustment and clamping force.
- High hardness (Rockwell C37) resists wear and deformation, ensuring long-term durability under repetitive use.
- Hex socket drive enables easy installation with standard tools, reducing assembly time and improving efficiency in B2B operations.
Professional Applications & Engineering Value
This 2-64 UNF socket head cap screw is engineered from black-oxide alloy steel to address common industrial challenges, such as corrosion and mechanical stress in demanding environments. Its fine thread configuration and Class 3A fit provide superior vibration resistance and precise alignment, making it ideal for applications in aerospace, automotive, and precision machinery where reliability is critical. The fully threaded rod design ensures uniform load distribution, reducing the risk of loosening under dynamic conditions. By combining high tensile strength with a durable surface treatment, this fastener minimizes downtime and maintenance costs, offering long-term value in B2B sectors that prioritize performance and compliance with industry standards.
Specification Summary & Compliance
This product features a 2-64 UNF fine thread with Class 3A thread fit for high precision, and dimensions include a 1/2" length and 5/64" hex drive. It meets ASTM A574 specifications for alloy steel socket head cap screws, ensuring consistent quality and performance. Additionally, it is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmental and safety standards in global industrial supply chains.
