S-91274A120 10-24 x 1" 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 under high-stress conditions, reducing the risk of fastener failure in demanding applications.
• Superior corrosion resistance from the zinc-flake coating protects against harsh industrial environments, extending service life and minimizing maintenance needs.
• Precise Class 3A thread fit guarantees tight, secure connections with minimal backlash, enhancing assembly accuracy and vibration resistance.
• High hardness (Rockwell C37) provides excellent wear resistance, maintaining thread integrity and drive engagement through repeated use.
• Standard hex drive (5/32") allows for easy installation and removal with common tools, streamlining maintenance and reducing assembly time.
• Full threading and coarse UNC spacing enable quick engagement and strong holding power in a variety of materials, improving installation efficiency.
• Compliance with ASME B18.3 and ASTM A574 ensures consistent quality, dimensional accuracy, and interoperability with standardized components.

Professional Applications & Engineering Value

This 10-24 UNC Socket Head Cap Screw is engineered to address critical challenges in industrial settings where vibration, high loads, and corrosive conditions are common. The zinc-flake-coated alloy steel construction provides a robust barrier against oxidation and chemical exposure, making it ideal for machinery, automotive assemblies, and outdoor equipment. The Class 3A thread fit and coarse thread spacing ensure rapid, secure fastening in metals and composites, reducing the risk of loosening under dynamic stresses. With its high tensile strength and fully threaded design, it delivers uniform clamping force and reliable performance in structural applications, from heavy-duty frames to precision instruments, enhancing overall system durability and safety.

Specification Summary & Compliance

This socket head cap screw features a 10-24 UNC thread size with Class 3A fit for precise dimensional accuracy, and is manufactured in accordance with ASME B18.3 and ASTM A574 standards. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material reliability for global industrial use.