S-92685A210 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
• Efficient thread-forming installation creates stronger, more reliable threads in steel and sheet metal without pre-drilling
• Integrated drilling tip eliminates separate drilling operations, reducing installation time and labor costs
• Flanged hex head design provides wider bearing surface for secure fastening and eliminates need for separate washers
• Anti-rotation serrations under the head prevent loosening from vibration, ensuring long-term joint integrity
• External hex drive compatibility with standard tools enables quick installation and high torque application
• Optimized for 0.098" maximum drilling thickness in steel and sheet metal applications with precise No. 2 drill tip geometry

Professional Applications & Engineering Value

These No. 8-18 TPI flanged tapping screws deliver exceptional value in steel and sheet metal fabrication by combining drilling and fastening operations into a single step. The thread forming technology creates permanent, high-strength threads through material displacement rather than cutting, resulting in superior resistance to vibration loosening. The zinc-plated steel construction provides reliable corrosion protection for indoor and protected outdoor applications, while the fully threaded design ensures maximum grip length and pull-out resistance. The flanged hex head with serrations offers excellent clamp load distribution and prevents rotation during service, making these BSD type screws ideal for HVAC systems, electrical enclosures, and metal framing applications where reliability and installation efficiency are critical.

Specification Summary & Compliance

This No. 8-18 x 1/2" tapping screw features precise 0.164" thread diameter with 18 TPI right-hand threads and Class 2A thread tolerances for consistent performance. Manufactured to BSD screw type standards with fully threaded design and 3/8" flange diameter. The No. 2 drill tip provides optimal penetration in materials up to 0.098" thickness. Complies with industry standards for thread forming screws and contains materials meeting RoHS and REACH environmental requirements.