S-90420A405 Length 1 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with galvanic-barrier coated 18-8 stainless steel construction, ideal for harsh industrial environments
• Efficient self-drilling capability with integrated No. 2 drill tip that penetrates up to 0.106" thickness in steel and sheet metal
• Enhanced installation security through external hex drive design providing reliable torque transmission
• Eliminates pre-tapping requirements with thread-forming BSD design that creates strong, permanent threads
• Improved load distribution thanks to the integrated flange design that replaces the need for separate washers
• Full-thread engagement along the 1-1/2" length ensures maximum holding power in various material thicknesses
• Versatile material compatibility for use in steel, stainless steel, and sheet metal applications

Professional Applications & Engineering Value

Engineered for demanding industrial applications, these No. 10-16 flanged hex head tapping screws deliver exceptional value in metal fabrication and construction projects. The galvanic-barrier coated 18-8 stainless steel construction prevents galvanic corrosion when joining dissimilar metals, while the thread-forming BSD design creates stronger, more reliable threads than conventional cutting screws. The integrated No. 2 drilling tip eliminates the need for separate drilling operations, significantly reducing assembly time in sheet metal and steel applications. The external hex drive ensures secure installation with standard tools, and the built-in flange provides superior clamping force distribution, making these tapping screws ideal for HVAC systems, electrical enclosures, and structural metal assemblies where vibration resistance and long-term reliability are critical.

Specification Summary & Compliance

These No. 10-16 x 1-1/2" flanged hex head tapping screws feature precision right-hand threads with 16 threads per inch and comply with BSD tapping screw standards. The fully threaded design ensures consistent engagement throughout the fastener length, while the 0.313" hex head provides reliable drive performance. Manufactured from 18-8 stainless steel with galvanic-barrier coating, these screws meet industry standards for corrosion resistance and are suitable for use in various industrial environments. The thread-forming design creates permanent, high-strength connections without material removal, ensuring optimal performance in steel, stainless steel, and sheet metal applications up to 0.106" thickness.