S-94209A030 2-56 x 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
• Enhanced torque transmission and reduced cam-out with Torx Plus IP7 drive system for reliable installation and removal
• Secure, vibration-resistant fastening in soft materials through Tri-Lobe shank design that creates permanent, high-retention threads
• Optimized for aluminum, brass, and copper applications with thread-forming technology that eliminates the need for pre-tapped holes
• Precise dimensional control with UNC coarse threading and 1/4" length tolerance ensuring consistent performance across assemblies
• Streamlined installation process with fully threaded blunt tip design that facilitates easy starting and proper alignment
• Compliance with global environmental standards including RoHS 3 and REACH for international project acceptance

Professional Applications & Engineering Value

These 2-56 UNC thread forming screws deliver exceptional engineering value in aluminum, brass, and copper assemblies where traditional fastening methods fall short. The zinc-plated steel construction provides essential corrosion protection while the Tri-Lobe shank cross-section creates strong, permanent threads through material displacement rather than cutting. This eliminates chip formation issues common in soft metals and ensures superior resistance to vibration loosening. Combined with the Torx Plus IP7 drive system, these tapping screws enable higher torque application without tool slippage, reducing installation time and preventing damage to sensitive components. The fully threaded design maximizes engagement in thin materials, making them ideal for electronics enclosures, HVAC systems, and precision instrumentation where reliable fastening is critical.

Specification Summary & Compliance

These No. 2 screws feature 2-56 UNC coarse threads with standard Class 2A tolerances, 1/4" length with -0.03" to 0" tolerance, and Torx Plus T7/IP7 drive compatibility. The thread forming tapping method is engineered for use with No. 48 drill bits (0.076" diameter) in non-ferrous materials. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring global acceptance for industrial applications.