S-90821A374 Length 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Eliminates pre-drilling requirements with integrated No. 3 drill tip that penetrates up to 0.187" thickness in aluminum and sheet metal
• Superior corrosion resistance through galvanic barrier coated 18-8 stainless steel construction for extended service life in harsh environments
• Enhanced torque transmission and stability with flanged hex head design that distributes clamping force evenly
• Maximum holding power achieved through fully threaded design and thread forming technology that creates strong, permanent threads
• Optimized for industrial efficiency with No. 12-14 thread specification providing reliable fastening in demanding applications
• Simplified installation with external hex drive compatible with standard tools for quick assembly operations
• Reduced material stress through thread forming design that displaces rather than removes material during installation

Professional Applications & Engineering Value

This thread forming tapping screw delivers exceptional engineering value in aluminum and sheet metal fabrication applications where corrosion resistance and installation efficiency are critical. The galvanic barrier coated 18-8 stainless steel construction provides superior protection against galvanic corrosion when fastening dissimilar metals, while the integrated No. 3 drill tip eliminates the time and cost associated with pre-drilling operations. The flanged hex head design ensures optimal torque transmission and prevents pull-through in thin materials, making it ideal for HVAC systems, electrical enclosures, and automotive assemblies where vibration resistance and long-term reliability are essential. The BSD thread forming technology creates strong, permanent threads that withstand dynamic loads and thermal cycling in industrial environments.

Specification Summary & Compliance

This No. 12-14 thread forming tapping screw features precise dimensional accuracy with a 0.216" thread diameter and 14 threads per inch, manufactured to BSD standards for consistent performance. The 3/4" length with 0.432" flange diameter and fully threaded shank ensures reliable fastening in materials up to 0.187" thickness. Constructed from 18-8 stainless steel with galvanic barrier coating for enhanced corrosion protection, this industrial fastener meets industry standards for quality and performance in metalworking applications, providing reliable compliance with industrial fastening requirements.