S-91274A128 10-24 x 1 1/2" ASME B18.3, ASTM A574, ASTM B117 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 from the zinc-flake coating extends service life in harsh environments, minimizing maintenance and replacement costs.
• Precise Class 3A thread fit provides secure, vibration-resistant connections, enhancing assembly integrity and reducing loosening over time.
• High hardness rating (Rockwell C37) offers excellent wear resistance, maintaining thread integrity through repeated use and installation.
• Partially threaded design allows for optimal clamping force control, ideal for applications requiring specific grip lengths.
• Hex socket drive (5/32") enables easy installation with standard tools, improving assembly efficiency and reducing stripping risks.
• Compliance with major standards including ASME B18.3 and ASTM A574 ensures consistent quality and interoperability in industrial settings.

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 10-24 UNC Socket Head Cap Screws address critical challenges in machinery, automotive, and heavy equipment assembly. The zinc-flake-coated alloy steel construction provides robust protection against corrosion, essential for outdoor or chemically exposed applications. With a coarse thread and Class 3A fit, these screws deliver superior vibration resistance and ease of installation in high-volume production lines. The partially threaded rod design ensures precise clamping without over-tightening, reducing material stress. Ideal for securing structural components, these industrial fasteners enhance reliability in assemblies subject to dynamic loads and harsh conditions, supported by their high tensile strength and compliance with global standards.

Specification Summary & Compliance

This Socket Head Cap Screw features a 10-24 UNC coarse thread with Class 3A precision fit, ensuring tight tolerances per ASME B18.3. Manufactured from alloy steel under ASTM A574, it meets rigorous mechanical properties including Rockwell C37 hardness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming adherence to environmental and safety standards for industrial use.