S-90203A516 Length 1 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Self-drilling capability eliminates pre-drilling, saving time and labor costs in steel, stainless steel, and sheet metal applications
• 410 Stainless Steel construction provides excellent corrosion resistance and durability for long-lasting performance in harsh industrial environments
• BSD thread forming design creates strong, secure threads in parent material, reducing the risk of stripping and ensuring reliable fastening
• 3/16" drill tip efficiently penetrates up to 0.098" thickness, offering consistent performance in various metal gauges
• Pan head with square drive (No. 2) allows for high-torque installation and a low-profile finish that resists snagging
• Fully threaded 1-1/2" length ensures maximum grip and holding power across the entire fastener engagement
• RoHS 3 and REACH compliance meets stringent environmental regulations, making them suitable for global industrial supply chains

Professional Applications & Engineering Value

These No. 8 self-drilling tapping screws are engineered to address common challenges in metal fabrication and assembly, such as the need for speed and reliability. The 410 Stainless Steel material offers superior strength and rust resistance, critical for outdoor or corrosive environments. The BSD thread forming technique cold-forms mating threads, which work-hardens the material and provides vibration resistance, reducing loosening in dynamic applications. The integrated drill tip (Type No. 2) allows direct installation into steel, stainless steel, and sheet metal without pilot holes, streamlining production lines and minimizing tool changes. This combination of self-drilling and thread forming features makes them ideal for HVAC, automotive, and construction projects where efficiency and joint integrity are paramount.

Specification Summary & Compliance

This fastener features a thread diameter of 0.164" with 18 threads per inch in a right-hand direction, fully threaded along the 1-1/2" length. The pan head has a diameter of 0.322" and height of 0.115", designed for a square drive (No. 2) to prevent cam-out during installation. It conforms to typical inch-system tolerances for tapping screws and is manufactured to deliver consistent performance in designated materials. The product is verified to be RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring adherence to environmental and safety standards for industrial use.