S-90064A722 Length 1 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ensuring long-term reliability in demanding industrial environments.
• Efficient installation and reduced assembly time through the self-drilling tip that eliminates pre-drilling, penetrating up to 0.09" thickness in steel and sheet metal.
• Enhanced torque transmission and secure fastening with the external hex drive and flanged head design, providing a non-slip grip and even load distribution.
• Strong, reliable thread formation using the BSD thread forming method, which creates durable threads without generating chips, ideal for repeated disassembly and reassembly.
• Full-length threading for maximum holding power across the entire 1-1/2" length, ensuring consistent engagement and vibration resistance in high-stress applications.
• Precise fit and compatibility with No. 6-20 thread specifications, offering reliable performance in standard industrial fastening systems.
• Versatile application range designed specifically for steel and sheet metal, making them a go-to solution for HVAC, automotive, and construction projects.

Professional Applications & Engineering Value

These No. 6-20 zinc-plated steel flanged hex head tapping screws are engineered to address common challenges in sheet metal and steel fabrication, where speed, durability, and corrosion resistance are critical. The thread forming (BSD) design eliminates the need for pre-tapped holes, reducing labor costs and potential material weakening. The integrated No. 2 drilling tip allows for direct penetration into materials up to 0.09" thick, streamlining assembly in HVAC ductwork, electrical enclosures, and automotive panels. Made from zinc-plated steel, these screws offer enhanced protection against rust and environmental exposure, ensuring reliable performance in both indoor and outdoor settings. The external hex drive and flanged head provide superior torque control, preventing cam-out and distributing clamp load effectively to minimize sheet distortion—a common issue in thin-metal applications.

Specification Summary & Compliance

This product adheres to standard inch system measurements with a thread diameter of 0.138" and 20 threads per inch, ensuring precise fit in No. 6-20 threaded applications. The screws are fully threaded and feature a right-hand thread direction with a round shank cross-section for consistent performance. Manufactured to industry specifications for BSD tapping screw types, these screws comply with common industrial standards for dimensional accuracy and are suitable for use in various steel and sheet metal assemblies. The zinc plating provides corrosion resistance in line with general industry requirements for environmental durability.