S-90272A330 5-40 x 9/16" ASME B18.6.3 Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments.
• High-load bearing capacity from 60,000 psi tensile strength, ensuring reliable fastening under stress.
• Excellent durability with Rockwell B70 hardness, providing resistance to wear and deformation.
• Efficient installation via Phillips No. 2 drive and pan head design, reducing assembly time and tool slippage.
• Wide compatibility with 5-40 UNC coarse threads and Class 2A fit, offering secure connections in various materials.
• Full-thread engagement along the 9/16" length, maximizing grip strength and pull-out resistance.
• Regulatory compliance with ASME B18.6.3, RoHS 3, and REACH, ensuring safety and environmental standards are met.

Professional Applications & Engineering Value

This 5-40 UNC coarse thread screw is engineered for robust performance in industrial settings, where vibration resistance and long-term reliability are critical. The zinc-plated steel material combats rust and corrosion, making it ideal for machinery, electrical enclosures, and automotive assemblies exposed to harsh conditions. Its fully threaded design and Class 2A thread fit ensure precise engagement, reducing the risk of loosening in high-stress applications. The pan head with Phillips drive allows for quick, secure fastening with standard tools, streamlining maintenance and production workflows while meeting strict ASME B18.6.3 specifications for consistent quality.

Specification Summary & Compliance

This screw adheres to Class 2A thread fit tolerances per UNC coarse thread standards, ensuring dimensional accuracy and interchangeability. It complies with ASME B18.6.3 for manufacturing consistency, RoHS 3 (2015/863/EU) for hazardous substance restrictions, and REACH (EC 1907/2006) for chemical safety, supporting sustainable and regulated industrial use.