S-91274A400 7/16"-14 x 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 under extreme loads, reducing the risk of fastener failure in demanding applications.
• Superior corrosion resistance from the zinc-flake coating protects against rust and environmental degradation, extending service life in harsh industrial settings.
• Precise Class 3A thread fit guarantees tight, secure connections with minimal play, enhancing assembly integrity and vibration resistance.
• High-strength alloy steel construction with Rockwell C37 hardness offers excellent durability and wear resistance for long-term use.
• Hex socket drive design allows for easy installation and high torque application in confined spaces, improving assembly efficiency.
• Compliance with ASME B18.3 and ASTM A574 standards ensures consistent quality, dimensional accuracy, and interoperability with other components.
• RoHS 3 and REACH compliance makes these screws suitable for global markets and environmentally sensitive applications without hazardous substances.

Professional Applications & Engineering Value

These socket head cap screws are engineered to address critical challenges in heavy-duty industrial environments, such as machinery, automotive, and construction equipment. The zinc-flake-coated alloy steel provides robust corrosion protection, preventing premature failure in moist or chemically aggressive conditions. With a 7/16"-14 UNC coarse thread and Class 3A fit, they deliver superior clamping force and vibration resistance, minimizing loosening in high-stress assemblies. The partially threaded design allows for precise load distribution, while the hex drive facilitates quick installation in tight spaces. Ideal for applications requiring high tensile strength and reliability, these fasteners ensure operational safety and reduce maintenance downtime.

Specification Summary & Compliance

This product adheres to strict dimensional tolerances, including Class 3A thread fit for precision and UNC coarse threads for easy engagement. It meets ASME B18.3 and ASTM A574 manufacturing specifications, ensuring consistent performance. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) confirms environmental safety, with no restricted substances, making it suitable for global industrial use.