S-94209A070 4-40 x 5/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior torque transmission with Torx Plus IP10 drive system, reducing cam-out and tool wear for reliable installation
• Exceptional material compatibility with zinc-plated steel construction, providing corrosion resistance for aluminum, brass, and copper applications
• Enhanced holding power through tri-lobe shank design that creates secure, vibration-resistant connections in softer metals
• Optimized thread forming with UNC coarse threads that displace material without creating chips in ductile metals
• Streamlined installation process with fully threaded 5/8" length and blunt tip for precise positioning and maximum thread engagement
• Industry compliance assurance meeting RoHS 3 and REACH environmental standards for global manufacturing requirements
• Versatile pan head design with standard rounded profile offering balanced clamp load distribution across various applications

Professional Applications & Engineering Value

These 4-40 UNC thread forming screws deliver exceptional engineering value in aluminum, brass, and copper assemblies where traditional fastening methods often fail. The zinc-plated steel construction provides essential corrosion protection while maintaining the strength needed for durable connections. The tri-lobe shank design creates interference fits that resist vibration loosening, a common challenge in metal fabrication and electronic enclosures. With Torx Plus IP10 drive technology, manufacturers achieve higher torque application without screw head damage, reducing installation errors and production downtime. The thread forming capability eliminates tapping operations in softer metals, streamlining assembly processes while providing secure, chip-free fastening in critical applications from electrical components to precision machinery.

Specification Summary & Compliance

These tapping screws feature precision 4-40 UNC coarse threads with standard Class 2A tolerances, ensuring consistent performance across production runs. The 5/8" length maintains tight dimensional control with -0.03" to 0" length tolerance for reliable seating depth. Manufactured to industry standards for thread forming screws, these fasteners comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making them suitable for global supply chains and environmentally conscious manufacturing operations.