S-91515A390 Length 3" Tapping Screws

Key Features & Benefits at a Glance

• Eliminates pre-drilling requirements with integrated drilling tip that penetrates up to 1/4" thick steel and sheet metal
• Superior corrosion resistance through zinc-plated steel construction for extended service life in industrial environments
• Enhanced load distribution with wide truss head and flange design that prevents pull-through in thin materials
• Secure thread formation through thread-forming BSD design that creates strong, permanent fastenings in metal substrates
• Optimized driving efficiency with Phillips No. 3 drive that provides reliable torque transfer during installation
• Full-length threading ensures maximum grip and holding power across the entire 3" fastener length
• Compliance with environmental standards through RoHS 3 certification for safe industrial applications

Professional Applications & Engineering Value

These zinc-plated steel truss head tapping screws deliver exceptional value in metal fabrication and assembly operations where thread-forming capability is critical. The combination of BSD thread design and integrated drilling tip eliminates the time and cost associated with pre-drilling operations while creating permanent, vibration-resistant fastenings in steel and sheet metal applications. The wide flange truss head provides superior clamping force distribution, preventing material distortion in thin-gauge metals. Engineered for high-volume production environments, these Phillips drive screws maintain consistent performance through automated installation processes while the zinc plating offers reliable protection against corrosion in demanding industrial conditions.

Specification Summary & Compliance

This 1/4"-14 x 3" tapping screw features precision right-hand threads with approximately 14 threads per inch, manufactured to BSD thread-forming standards. The fastener includes a No. 3 drilling tip capable of penetrating up to 1/4" thickness in steel and sheet metal applications. Manufactured with Class 2A thread tolerances for consistent installation performance, these screws are RoHS 3 (2015/863/EU) compliant, meeting international environmental and safety regulations for industrial fastener applications.