S-90272A730 1/4"-20 x 5" ASME B18.6.3 Steel Pan Head Phillips Screws

Key Features & Benefits at a Glance

• Exceptional tensile strength of 60,000 psi ensures reliable performance under heavy loads and vibration, reducing the risk of fastener failure in demanding applications.
• Superior corrosion resistance from the zinc-plated steel construction extends service life and maintains integrity in humid or harsh industrial environments.
• Wide compatibility and easy installation with UNC coarse threading and Class 2A fit, providing quick assembly and a secure hold in various materials.
• Optimized drive engagement with a No. 3 Phillips drive and rounded pan head design allows for efficient torque application and a low-profile, finished appearance.
• Full threading along the 5-inch length offers maximum grip and adjustability, ensuring a tight fastening from tip to head.
• High material hardness (Rockwell B70) resists wear and deformation during installation and use, promoting durability and reuse potential.
• Compliance with major industry standards including ASME B18.6.3, RoHS 3, and REACH, guaranteeing safety, quality, and environmental responsibility for global supply chains.

Professional Applications & Engineering Value

Engineered for robust performance, these zinc-plated steel screws with a rounded pan head and Phillips drive address critical needs in assembly lines, machinery, and structural frameworks. The 1/4"-20 UNC coarse thread and Class 2A fit ensure rapid installation and high resistance to loosening, minimizing maintenance downtime. With a fully threaded 5-inch shank, they provide consistent clamping force in thick materials or stacked components, ideal for industrial applications like equipment manufacturing, automotive assemblies, and construction projects. The combination of 60,000 psi tensile strength and corrosion-resistant plating delivers long-term reliability, reducing replacement costs and enhancing operational safety in challenging environments.

Specification Summary & Compliance

This product adheres to precise dimensional standards, including UNC coarse thread spacing and Class 2A thread fit for consistent accuracy. Manufacturing and material specifications meet ASME B18.6.3, ensuring interoperability and performance. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) confirms the absence of hazardous substances, supporting sustainable and safe usage in regulated markets.