S-91251A240 10-24 x 3/8" ASTM A574 Alloy Steel Socket Head Screws

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 with black-oxide coating extends service life in harsh industrial environments, minimizing maintenance needs.
• Precise Class 3A thread fit guarantees secure, vibration-resistant connections, enhancing assembly integrity and reducing loosening over time.
• High hardness (Rockwell C37) provides excellent wear resistance, maintaining thread integrity through repeated installations and removals.
• Coarse UNRC threads enable faster installation and better debris clearance, speeding up assembly processes in demanding conditions.
• Standard hex socket drive (5/32") allows for high torque application with common tools, ensuring easy and efficient fastening.
• Full compliance with ASTM A574, RoHS 3, and REACH ensures material consistency and environmental safety, meeting global regulatory standards for industrial use.

Professional Applications & Engineering Value

This Black-Oxide Alloy Steel Socket Head Cap Screw is engineered to address critical challenges in heavy-duty assemblies, such as machinery, automotive, and aerospace components. The Class 3A coarse thread and fully threaded design provide superior grip and load distribution, preventing stripping under high vibration. The black-oxide surface treatment offers enhanced corrosion resistance, ideal for environments exposed to moisture or chemicals. With a tensile strength of 170,000 psi and Rockwell C37 hardness, it withstands extreme forces without deformation, ensuring long-term reliability. Its 10-24 thread size and 3/8" length make it versatile for compact spaces, while the hex drive facilitates quick installation, reducing downtime in production lines.

Specification Summary & Compliance

This socket head cap screw adheres to Class 3A thread fit for precise tolerance, with UNRC coarse threads and right-hand thread direction. It meets ASTM A574 specifications for high-strength alloy steel, ensuring consistent manufacturing quality. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and safe for industrial use worldwide.