S-94209A455 2-56 x 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-coated steel construction for extended service life in demanding environments
• Enhanced torque transmission through Torx Plus IP7 drive system, reducing cam-out and tool wear
• Reliable thread formation in soft materials like aluminum, brass, and copper with Tri-Lobe shank design
• Optimized for industrial applications with coarse UNC threading providing quick installation and strong holding power
• Full 1/4" threading ensures maximum engagement and consistent clamping force throughout the fastener length
• Precision manufacturing with controlled length tolerance for consistent performance in automated assembly
• Environmental compliance meeting RoHS 3 and REACH standards for global manufacturing requirements

Professional Applications & Engineering Value

These 2-56 UNC Tri-Lobe thread forming screws are engineered specifically for challenging aluminum, brass, and copper applications where traditional fastening methods may fail. The black corrosion-resistant steel coating provides essential protection against environmental factors while maintaining electrical conductivity. The innovative Tri-Lobe shank cross-section displaces material during installation, creating stronger, more reliable threads without chip formation - eliminating contamination risks in sensitive assemblies. Combined with the Torx Plus drive system, these screws deliver maximum torque transfer efficiency, reducing installation time and preventing fastener damage in high-volume production environments. This combination of thread forming technology and advanced drive design makes them ideal for electronics enclosures, HVAC components, and precision machinery where vibration resistance and long-term reliability are critical.

Specification Summary & Compliance

Manufactured to precise dimensional standards with Class 2A thread tolerance and length tolerance of -0.03" to 0". Features UNC coarse threading (2-56) with fully threaded blunt tip design and standard pan head profile. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Designed for use with No. 48 drill bit (0.076" diameter) in thread forming applications for aluminum, brass, and copper substrates.