S-90044A121 10-32 x 2 1/2" ASTM A574 Alloy Steel Socket Head Screws

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 in critical assemblies.
• Superior corrosion resistance from the black-oxide finish on alloy steel extends service life in harsh industrial environments, minimizing maintenance and replacement costs.
• Precise Class 3A thread fit guarantees tight tolerances and secure fastening, preventing loosening in vibration-prone applications.
• Fine UNRF threads provide enhanced grip and load distribution, ideal for applications requiring fine adjustments and high clamping force.
• Fully threaded design allows for maximum engagement along the entire length, offering flexibility in assembly depth and improved holding power.
• Hex socket drive (5/32") enables easy installation with standard tools in confined spaces, reducing assembly time and labor costs.
• Compliance with RoHS 3 and REACH ensures environmental safety and regulatory adherence, supporting sustainable and responsible manufacturing practices.

Professional Applications & Engineering Value

This socket head cap screw is engineered to address common industrial challenges, such as vibration-induced loosening and corrosion in demanding environments. Made from black-oxide alloy steel, it combines high Rockwell C37 hardness with excellent durability, making it suitable for heavy machinery, automotive assemblies, and precision equipment where reliability is critical. The UNRF fine thread and Class 3A fit ensure minimal backlash and superior thread engagement, reducing the need for frequent retightening. Its fully threaded 2-1/2" length provides consistent clamping force, ideal for applications requiring uniform stress distribution. By meeting ASTM A574 specifications, this fastener delivers consistent quality and performance, enhancing operational efficiency in industrial settings.

Specification Summary & Compliance

This product features precise Class 3A thread fit and UNRF fine thread standards, ensuring high dimensional accuracy. It complies with ASTM A574 for material and manufacturing consistency, and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for environmental and health safety.