S-92610A583 5/16"-18 x 1" ASTM A574 Torx Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Superior torque transmission with Torx Plus IP45 drive system, reducing cam-out risk and tool wear for reliable installation.
• Exceptional tensile strength of 180,000 psi ensures high load-bearing capacity and resistance to mechanical failure in demanding applications.
• Enhanced corrosion resistance from the black-oxide finish on alloy steel, providing durability in various industrial environments.
• Precise thread engagement with Class 3A fit for secure fastening and vibration resistance, minimizing loosening over time.
• Full threading along the 1" length allows for adjustable grip and consistent clamping force across the entire fastener.
• High hardness rating of Rockwell C39 ensures long-term wear resistance and maintains structural integrity under stress.
• Compliance with major standards including ASTM A574, RoHS 3, and REACH, ensuring safety and environmental responsibility.

Professional Applications & Engineering Value

This 5/16"-18 UNC Socket Head Cap Screw is engineered for high-stress environments where reliability is critical. The black-oxide alloy steel construction offers excellent resistance to rust and wear, making it ideal for machinery, automotive assemblies, and heavy equipment. The Torx Plus IP45 drive provides superior torque transfer compared to standard drives, reducing the risk of stripping and enabling efficient installation in confined spaces. With a coarse thread and Class 3A thread fit, it ensures quick assembly and secure fastening in materials like steel and cast iron, addressing common issues like vibration-induced loosening. Fully threaded design allows for uniform stress distribution, enhancing joint integrity in industrial applications requiring repeated disassembly.

Specification Summary & Compliance

This socket head cap screw features a 5/16"-18 UNC coarse thread with Class 3A thread fit for precise dimensional accuracy, ensuring consistent performance. It meets ASTM A574 specifications for high-strength alloy steel fasteners, guaranteeing material and manufacturing quality. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming it is free from hazardous substances and safe for use in various industries.