S-91274A376 7/16"-14 x 5/8" 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 industrial environments, minimizing maintenance needs.
• Precision Class 3A thread fit provides consistent engagement and vibration resistance, enhancing assembly integrity.
• High hardness (Rockwell C37) offers excellent wear resistance, maintaining thread form and drive integrity over repeated use.
• 3/8" hex drive design allows for high torque application with standard tools, facilitating efficient installation and removal.
• Coarse UNC threads enable quick assembly and are less prone to clogging in dirty or debris-filled conditions.
• Compliance with ASME B18.3 and ASTM A574 guarantees dimensional accuracy and material quality, ensuring interchangeability and reliability.

Professional Applications & Engineering Value

Engineered for demanding industrial settings, these Socket Head Cap Screws are crafted from zinc-flake-coated alloy steel to address common challenges like corrosion and mechanical stress. The Class 3A thread fit and coarse UNC threading provide secure fastening in high-vibration environments, such as heavy machinery, automotive assemblies, and construction equipment, where loosening can lead to operational failures. The 3/8" hex drive ensures efficient torque transmission, reducing installation time and tool wear. By combining high tensile strength and durability, these screws minimize downtime and enhance the longevity of critical connections, making them ideal for B2B procurement in sectors prioritizing safety and performance.

Specification Summary & Compliance

This product adheres to precise dimensional standards, including Class 3A thread fit and UNC coarse threads with a size of 7/16"-14, ensuring tight tolerances per ASME B18.3. Manufactured in compliance with ASTM A574 for material consistency, it meets regulatory requirements such as RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), confirming environmental and safety standards. The zinc-flake coating provides additional protection, aligning with industry best practices for corrosion resistance.