S-92365A446 Length 3 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
• Efficient thread-forming design creates strong, permanent threads in steel and sheet metal without pre-drilling
• Integrated drilling tip technology eliminates separate drilling operations, saving time and labor costs
• Optimized 82° countersink angle ensures flush mounting and professional finish in metal applications
• Full threading along the 3-1/2" length provides maximum grip and holding power throughout the material thickness
• Phillips flat head design offers secure drive engagement and clean, recessed installation
• Precision No. 8 screw size with 0.164" thread diameter delivers reliable performance in standard industrial applications

Professional Applications & Engineering Value

These zinc-plated steel tapping screws are engineered specifically for steel and sheet metal applications where durability and installation efficiency are critical. The thread forming design creates strong, permanent threads in parent material without chip removal, eliminating the risk of loose fittings in vibration-prone environments. The integrated No. 2 drilling tip penetrates up to 0.1" thickness, combining drilling and fastening into a single operation that significantly reduces assembly time. The fully threaded configuration ensures maximum thread engagement along the entire 3-1/2" length, providing superior pull-out resistance in structural connections. The 82° countersink angle and flat head profile create a flush finish that meets professional standards for metal fabrication, HVAC systems, and construction applications.

Specification Summary & Compliance

These BSD tapping screws feature precision No. 8 size with 0.164" thread diameter and 18 threads per inch, manufactured to industry standards for dimensional accuracy. The thread forming design follows established engineering specifications for metal fastening applications. The zinc-plated steel construction provides corrosion resistance while maintaining compliance with industrial fastener requirements. The screws are designed with standard right-hand threading and Phillips drive configuration for compatibility with common installation tools and practices.