S-90203A628 Length 3" Tapping Screws

Key Features & Benefits at a Glance

• Corrosion-resistant 18-8 stainless steel construction ensures long-term durability in harsh environments, reducing replacement costs and maintenance downtime.
• Integrated drilling tip eliminates the need for pre-drilling, enabling faster installation in aluminum and sheet metal up to 0.175" thickness.
• Thread forming design creates strong, secure threads in ductile materials, providing superior vibration resistance and holding power.
• Fully threaded shank maximizes grip and load distribution along the entire fastener length for enhanced joint integrity.
• Pan head with square drive (No. 2) offers high torque transmission and prevents cam-out, ensuring efficient, reliable driving.
• Right-hand threads with 16 TPI deliver consistent, precise engagement for repeatable assembly performance.
• Rounded head profile provides a finished appearance and reduces surface damage during installation.

Professional Applications & Engineering Value

These No. 10 x 3" stainless steel tapping screws are engineered to solve common fastening challenges in aluminum and sheet metal assemblies. The 18-8 stainless steel material offers excellent corrosion resistance, crucial for outdoor, marine, or high-moisture industrial settings. The thread forming tapping method displaces material rather than cutting it, resulting in stronger threads with improved fatigue resistance and no chip removal issues. Combined with the self-drilling tip type, these screws significantly reduce installation time and labor costs by eliminating separate drilling and tapping steps. This makes them ideal for high-volume production lines, HVAC systems, and metal fabrication where efficiency and joint reliability are paramount.

Specification Summary & Compliance

This fastener features a 0.19" thread diameter with 16 threads per inch and right-hand thread direction. The pan head has a diameter of 0.373" and height of 0.133", designed for use with a square drive No. 2. Manufactured to standard inch system tolerances for thread forming screws, it is fully threaded and complies with industry standards for material composition and dimensional consistency. The 18-8 stainless steel meets common industry requirements for corrosion resistance and mechanical properties.