S-90064A721 Length 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Eliminates pre-drilling requirements with integrated drilling tip that penetrates up to 0.09" thickness in steel and sheet metal
• Superior corrosion resistance through zinc-plated steel construction for extended service life in industrial environments
• High-torque installation capability with 1/4" external hex head design preventing tool slippage during driving
• Enhanced material displacement through thread forming technology creates stronger, vibration-resistant connections
• Increased bearing surface area with integrated flange distributes load evenly and prevents pull-through
• Full-length threading provides maximum thread engagement and superior holding power across the entire fastener length
• Optimized for high-volume assembly with standardized No. 6 BSD tapping screw configuration for consistent performance

Professional Applications & Engineering Value

These zinc-plated steel tapping screws deliver exceptional value in metal fabrication and construction applications where thread forming technology eliminates the need for tapped holes or separate drilling operations. The specialized drilling tip combined with BSD thread forming design creates permanent, high-strength connections in steel and sheet metal assemblies by displacing material rather than removing it, resulting in zero chip production and superior resistance to vibration loosening. The 1-1/4" length with full threading ensures maximum engagement in varying material thicknesses, while the external hex drive accommodates high-torque installation tools for efficient production line assembly. The integrated flange provides additional clamping force and eliminates the need for separate washers, streamlining inventory and reducing total installed cost.

Specification Summary & Compliance

These No. 6 thread forming tapping screws feature precise 0.138" thread diameter with 20 threads per inch in right-hand orientation, manufactured to BSD standards for consistent performance. The 1/4" hex head provides reliable driving compatibility with standard industrial tools, while the fully threaded 1-1/4" length maintains dimensional accuracy throughout. The zinc-plated steel construction meets industry corrosion resistance requirements, and the manufacturing process complies with relevant industrial fastening standards for quality assurance in commercial and construction applications.