S-90203A612 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Eliminates pre-drilling with integrated No. 2 drill tip, saving significant labor time and tooling costs in high-volume assembly.
• Superior corrosion resistance from 18-8 Stainless Steel construction, ensuring long-term reliability in harsh or outdoor environments.
• High-strength thread forming action creates precise, strong threads in ductile materials like aluminum and sheet metal for vibration-resistant assemblies.
• Optimized for thin materials, capable of drilling through up to 0.09" thickness, preventing material deformation and ensuring clean holes.
• Secure, cam-out resistant fastening provided by the square drive, allowing for high torque application and reducing driver bit wear.
• Maximum grip and holding power from the fully threaded design, distributing clamp load evenly along the entire shank length.
• Low-profile, rounded pan head offers a finished appearance and sits flush against surfaces without requiring countersinking.

Professional Applications & Engineering Value

These No. 6-20 self-drilling tapping screws are precision-engineered to solve common fastening challenges in sheet metal and aluminum fabrication. The 18-8 stainless steel material provides excellent resistance to oxidation and corrosion, making these thread forming screws ideal for HVAC systems, electronic enclosures, and outdoor assemblies. The No. 2 drill tip is specifically designed to penetrate up to 0.09" of material without pilot holes, drastically reducing assembly steps and the risk of workpiece damage. The combination of a square drive and fully threaded design ensures high torque transfer and superior pull-out strength, delivering reliable performance in demanding industrial applications where vibration resistance and joint integrity are critical.

Specification Summary & Compliance

This fastener features a No. 6-20 thread with a 0.138" diameter and 20 threads per inch, conforming to standard inch-series specifications for tapping screws. The thread forming tapping method and right-hand thread direction are designed for efficient installation. Manufactured from 18-8 Stainless Steel, these screws are compliant with RoHS and REACH environmental directives, ensuring they are free of hazardous substances and suitable for global industrial use.