S-90420A401 Length 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Eliminates pre-drilling requirements with integrated drilling tip that penetrates up to 0.106" thickness in steel and sheet metal
• Superior corrosion resistance through galvanic-barrier coated 18-8 stainless steel construction for extended service life
• Enhanced torque transmission via external hex drive design for secure installation and removal
• Reduced assembly time and components with integrated flange that eliminates the need for separate washers
• Strong, permanent threads created by thread-forming BSD design that resists vibration loosening
• Full-length threading ensures maximum grip and load distribution across the entire fastener length
• Broad material compatibility specifically engineered for steel, stainless steel, and sheet metal applications

Professional Applications & Engineering Value

These No. 10-16 flanged tapping screws deliver exceptional value in industrial fastening applications 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 strong, permanent threads that won't strip under vibration. The combination of drilling tip technology and external hex drive streamlines assembly processes in steel, stainless steel, and sheet metal applications, reducing labor costs and eliminating multiple tool changes. The integrated flange provides consistent clamping force distribution, making these screws ideal for HVAC systems, electrical enclosures, and metal fabrication where reliability and speed of installation directly impact project timelines.

Specification Summary & Compliance

Manufactured to precise inch system dimensions with No. 10-16 thread size and 3/4" length, these fully threaded screws feature right-hand thread direction and BSD tapping screw specifications. The external hex drive (0.313" width) ensures compatibility with standard industrial tools, while the drilling tip (No. 2 type, 13/64" length) is engineered for maximum penetration efficiency. Constructed from 18-8 stainless steel with specialized galvanic-barrier coating for enhanced corrosion protection. Compliant with industry standards for thread-forming screws and suitable for demanding industrial environments.