S-91864A086 6-32 x 9/16" ASTM A574 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 black-oxide finish on alloy steel, extending service life and maintaining integrity in harsh industrial environments.
• Precise Class 3A thread fit guarantees tight, secure fastening with minimal backlash, ideal for applications requiring high vibration resistance.
• Fully threaded design provides consistent holding power along the entire 9/16" length, offering versatile installation options and enhanced grip.
• Hex socket drive allows for high-torque application with standard 7/64" tools, enabling efficient assembly and disassembly in confined spaces.
• Rockwell C37 hardness ensures excellent wear resistance and durability, maintaining thread integrity through repeated use.
• Compliance with ASTM A574, RoHS 3, and REACH assures material quality and environmental safety, meeting rigorous industry and regulatory standards.

Professional Applications & Engineering Value

Engineered for precision and reliability, these 6-32 UNC thread socket head cap screws are ideal for high-stress industrial assemblies, including machinery, automotive components, and electronic enclosures. The black-oxide alloy steel construction combats corrosion, while the coarse thread design facilitates quick installation and robust clamping force in materials like metals and plastics. With a fully threaded rod and Class 3A fit, they eliminate loosening under vibration, addressing common failure points in dynamic environments. The hex drive ensures secure tool engagement, reducing slippage and enhancing efficiency in maintenance and production lines, making them a trusted choice for engineers seeking durability and compliance.

Specification Summary & Compliance

This product adheres to UNC coarse thread standards with a Class 3A thread fit for precise dimensional accuracy. It meets ASTM A574 specifications for high-strength alloy steel screws, ensuring consistent manufacturing quality. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, it supports environmental and safety requirements in global supply chains.