S-90272A334 5-40 x 2" 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 environments
• High tensile strength of 60,000 psi ensures reliable fastening under substantial mechanical stress
• Rockwell B70 hardness provides excellent wear resistance and prevents thread deformation during installation
• Class 2A thread fit offers consistent, reliable engagement with standard nuts and threaded holes
• Fully threaded design maximizes grip length and load distribution across the entire fastener
• Phillips No. 2 drive enables efficient installation with common tools while minimizing cam-out
• Rounded pan head profile combines low-profile aesthetics with practical bearing surface

Professional Applications & Engineering Value

Engineered for industrial assembly requiring reliable coarse thread performance, these 5-40 UNC zinc-plated steel screws address critical fastening challenges in machinery, electrical enclosures, and structural frameworks. The rounded pan head with Phillips drive provides secure installation without specialized tools, while the Class 2A thread fit ensures consistent engagement in high-vibration environments. The zinc plating creates a protective barrier against oxidation and chemical exposure, making these fully threaded screws ideal for outdoor equipment, automotive components, and manufacturing fixtures where 60,000 psi tensile strength maintains joint integrity under dynamic loads.

Specification Summary & Compliance

Manufactured to ASME B18.6.3 specifications with Class 2A thread fit tolerance for consistent mating with standard components. The 5-40 UNC coarse thread profile ensures rapid assembly while maintaining structural reliability. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, supporting sustainable manufacturing practices and global supply chain requirements.