S-92879A161 Length 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ensuring long-term reliability in various environments
• Enhanced sealing performance through aluminum/rubber/steel conical washers that prevent moisture and debris ingress
• Efficient thread forming design with cutting wings that create strong, permanent threads in plastic and wood without pre-drilling
• Secure fastening with external hex drive providing excellent torque transmission and preventing cam-out during installation
• Optimized load distribution from the conical washer design that reduces material stress and improves joint integrity
• Reliable partial threading that maximizes grip length while minimizing the risk of material splitting
• Industry compliance assurance meeting RoHS 3 and REACH standards for safe, regulated use in professional applications

Professional Applications & Engineering Value

These No. 12 zinc-plated steel tapping screws deliver exceptional engineering value through their specialized thread forming technology and integrated sealing washer system. The combination of cutting wings and right-hand threading creates clean, secure threads in plastic and wood substrates without requiring tapped holes, significantly reducing installation time and labor costs. The aluminum/rubber/steel conical washer provides a critical sealing function that protects against environmental contaminants while distributing clamping force evenly to prevent material deformation. This makes them ideal for outdoor equipment, electronic enclosures, furniture assembly, and construction applications where moisture resistance and vibration-proof fastening are essential. The external hex drive ensures reliable torque application with standard tools, while the partially threaded design concentrates holding power where it's needed most.

Specification Summary & Compliance

These inch system fasteners feature precise No. 12 thread diameter (0.216") with 11 threads per inch and 3/4" minimum thread length. The 1-1/4" overall length with partially threaded configuration and pointed tip ensures optimal penetration and holding strength. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing environmental safety and restricted substance compliance. The conical washer measures 0.551" OD with 0.13" thickness, providing reliable sealing performance across the specified application range.