S-91515A412 Length 2 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ensuring long-lasting performance in harsh industrial environments.
• Enhanced load distribution thanks to the truss head and flange design, reducing the risk of material damage in steel and sheet metal applications.
• Efficient, self-drilling installation with a No. 3 drill tip that penetrates up to 0.21" thickness, eliminating the need for pre-drilling and saving time.
• Reliable, vibration-resistant hold through thread forming technology and fully threaded design, providing consistent clamping force in dynamic conditions.
• Wide compatibility and secure fastening with a No. 12 size, 0.216" thread diameter, and 14 threads per inch, meeting BSD standards for diverse industrial uses.
• Easy, slip-resistant driving with a Phillips No. 2 drive, allowing for quick assembly without cam-out issues in high-torque scenarios.
• Compliance with global safety standards including RoHS 3, ensuring environmentally safe and regulated use in manufacturing processes.

Professional Applications & Engineering Value

These No. 12 tapping screws are engineered to address common challenges in steel and sheet metal fabrication, where durability and ease of installation are critical. The zinc-plated steel material offers excellent corrosion protection, extending service life in demanding environments like outdoor enclosures or machinery frames. With a thread forming design and fully threaded shank, these screws create strong, permanent threads in base materials without tapping, reducing the risk of stripping and improving vibration resistance. The integrated drilling tip allows for direct penetration into metals up to 0.21" thick, streamlining assembly workflows and minimizing tool changes. Ideal for HVAC systems, automotive panels, and structural assemblies, these BSD tapping screws deliver consistent performance, reducing downtime and maintenance costs in industrial settings.

Specification Summary & Compliance

This screw features precise dimensions, including a thread diameter of 0.216" and 14 threads per inch, adhering to standard BSD tapping screw specifications for reliable fit. The thread forming method ensures tight tolerances without pre-tapping, while the right-hand thread direction supports common assembly practices. Compliance with RoHS 3 (2015/863/EU) confirms the product meets stringent environmental and safety regulations, making it suitable for global industrial applications that require hazardous substance restrictions.