S-91515A396 Length 1 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Eliminates pre-drilling requirements with self-drilling tip that penetrates up to 0.21" thickness in steel and sheet metal
• Superior corrosion resistance through zinc-plated steel construction for extended service life in industrial environments
• Enhanced driving stability with Phillips No. 2 drive system preventing cam-out during high-torque installation
• Maximum material engagement through fully threaded design ensuring secure fastening across the entire length
• Increased bearing surface area with wide truss head and flange design distributing load effectively
• Reliable thread-forming performance using BSD tapping method that creates strong, permanent threads in base materials
• Environmental compliance assurance meeting RoHS 3 standards for safe, regulated industrial use

Professional Applications & Engineering Value

These zinc-plated steel tapping screws deliver exceptional value in demanding steel and sheet metal applications where time efficiency and joint integrity are critical. The specialized No. 3 drill tip design eliminates the labor-intensive pre-drilling process, significantly reducing installation time while maintaining precision alignment. The thread-forming BSD method creates durable, vibration-resistant connections by displacing material rather than removing it, resulting in stronger thread engagement. The combination of 0.216" thread diameter and fully threaded configuration ensures maximum pull-out resistance in thin-gauge materials, while the flanged truss head provides superior clamping force distribution, preventing material distortion in sensitive assemblies. These features make them ideal for HVAC systems, metal framing, electrical enclosures, and industrial equipment manufacturing where reliable fastening performance is non-negotiable.

Specification Summary & Compliance

These tapping screws feature precise 0.216" thread diameter with 14 threads per inch in right-hand thread configuration, manufactured to BSD standards for consistent performance. The 1-1/2" length provides optimal engagement depth for various material thicknesses. Compliance with RoHS 3 (2015/863/EU) ensures environmental responsibility, while the thread-forming design maintains dimensional accuracy throughout the fastening process. The zinc-plated steel construction meets industrial corrosion resistance requirements, making these screws suitable for demanding applications where regulatory compliance and material performance are essential.