S-90064A718 Length 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ensuring long-lasting performance in demanding industrial environments.
• Efficient installation through thread forming technology that creates strong, secure threads without pre-tapping, reducing assembly time and labor costs.
• Enhanced grip and stability with a flanged hex head design that provides increased bearing surface and prevents over-tightening in steel and sheet metal.
• Quick penetration using a self-drilling tip that eliminates the need for pilot holes, drilling through materials up to 0.09" thick for faster fastening.
• Reliable holding power from fully threaded right-hand design, ensuring maximum engagement and vibration resistance in high-stress applications.
• Easy drive application with external hex drive, allowing for high torque application using standard tools without slippage.
• Precise thread engagement with 20 threads per inch and 0.138" diameter, delivering consistent performance and secure fastening in various metal thicknesses.

Professional Applications & Engineering Value

These No. 6 zinc-plated steel tapping screws are engineered to address common challenges in metal fabrication and assembly. The thread forming design eliminates the risk of chip accumulation and thread stripping in steel and sheet metal applications, providing superior pull-out strength compared to traditional fasteners. The integrated drilling tip penetrates up to 0.09" thickness without pre-drilling, significantly reducing installation time and labor costs in high-volume production environments. The flanged hex head construction distributes clamping force evenly, preventing material distortion while the external hex drive ensures secure tool engagement during high-torque applications. These features make them ideal for HVAC systems, electrical enclosures, automotive components, and industrial machinery where vibration resistance and reliable performance are critical.

Specification Summary & Compliance

These BSD tapping screws feature precise No. 6 screw size with 0.138" thread diameter and 20 threads per inch, manufactured to standard inch system tolerances. The fully threaded right-hand design with 1/4" length and 1/4" hex head ensures consistent performance across applications. The zinc-plated steel construction provides corrosion protection while maintaining compliance with industry standards for thread forming screws used in metal fastening applications.