S-91515A271 Length 3 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
• Enhanced drilling performance with specialized tip design that penetrates up to 0.175" thick steel and sheet metal without pre-drilling
• Increased holding power through fully threaded design and thread forming technology that creates stronger, more secure connections
• Wide bearing surface from the flanged truss head design distributes load evenly and prevents pull-through in thin materials
• Optimized drive efficiency with Phillips No. 2 drive system providing reliable torque transfer and reduced cam-out during installation
• Precision thread engagement with 16 threads per inch ensuring consistent performance and vibration resistance in metal applications
• Environmental compliance assurance meeting RoHS 3 standards for safe, regulated use in global industrial operations

Professional Applications & Engineering Value

These zinc-plated steel tapping screws deliver exceptional engineering value in steel and sheet metal fabrication applications where traditional fastening methods fall short. The innovative thread forming design eliminates the need for separate tapping operations, significantly reducing installation time and labor costs in high-volume production environments. The BSD tapping screw configuration with fully threaded construction ensures maximum thread engagement and superior pull-out resistance, while the drilling tip penetrates materials up to 0.175" thick without pilot holes. This combination of features makes these No. 10 x 3-1/2" screws ideal for HVAC systems, electrical enclosures, automotive components, and industrial machinery where vibration resistance and long-term reliability are critical performance requirements.

Specification Summary & Compliance

These tapping screws feature precision 0.19" diameter threads with 16 threads per inch and right-hand thread direction conforming to industry standards. The thread forming tapping method and BSD screw type ensure consistent performance in metal joining applications. Manufacturing compliance includes RoHS 3 (2015/863/EU) certification, guaranteeing environmental safety standards are met for industrial use. The 3-1/2" length and fully threaded design provide maximum fastening versatility across various material thicknesses in steel and sheet metal assemblies.