S-90420A580 Length 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Eliminates pre-drilling requirements with integrated drilling tip that penetrates up to 0.187" thickness in steel and sheet metal
• Superior corrosion resistance through galvanic-barrier coated 18-8 stainless steel construction for harsh environments
• Enhanced grip and stability with flanged hex head design that distributes load and prevents pull-through
• Optimized thread engagement through thread-forming BSD design that creates strong, permanent threads in base materials
• High-strength fastening performance with fully threaded No. 12-14 TPI configuration for maximum holding power
• Easy installation and removal with external hex drive that accommodates standard tools and prevents stripping
• Versatile material compatibility designed specifically for steel, stainless steel, and sheet metal applications

Professional Applications & Engineering Value

These flanged hex head tapping screws deliver exceptional value in industrial assembly where corrosion resistance and installation efficiency are critical. The galvanic-barrier coated 18-8 stainless steel construction prevents galvanic corrosion when joining dissimilar metals, while the thread-forming BSD design creates precise, secure threads without pre-tapping. The integrated No. 3 drilling tip eliminates secondary drilling operations, significantly reducing assembly time in sheet metal fabrication, electrical enclosures, and structural steel applications. The external hex drive ensures reliable torque transmission, making these screws ideal for high-volume production environments where consistent performance and durability are paramount.

Specification Summary & Compliance

This No. 12-14 TPI flanged hex head tapping screw features precise inch-system dimensions including 0.216" thread diameter, 0.432" flange diameter, and 3/4" length. Manufactured to BSD tapping screw standards with right-hand threads and fully threaded shank. The galvanic-barrier coating on 18-8 stainless steel provides enhanced corrosion protection while maintaining compliance with industrial fastening specifications. The drilling tip configuration supports maximum penetration of 0.187" in steel, stainless steel, and sheet metal substrates without pilot holes.