S-90106A109 Length 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Eliminates pre-drilling with integrated drilling tip that penetrates up to 0.098" thickness in steel, stainless steel, and sheet metal, reducing installation time and labor costs
• Superior corrosion resistance thanks to 410 Stainless Steel construction, ensuring long-term reliability in harsh industrial environments
• High-torque driving capability with external hex head design for secure fastening and reduced risk of stripping during installation
• Enhanced grip and load distribution from the flanged design, preventing loosening under vibration and improving joint integrity
• Optimized thread engagement with 18 TPI fully threaded shank and thread-forming BSD design, providing strong pull-out resistance in metal substrates
• Wide material compatibility for use in steel, stainless steel, and sheet metal applications, offering versatile fastening solutions
• Regulatory compliance assurance with RoHS 3 and REACH standards, meeting environmental and safety requirements for industrial procurement

Professional Applications & Engineering Value

These 410 Stainless Steel self-drilling tapping screws deliver exceptional value in metal fabrication and assembly operations. The thread-forming BSD design creates precise mating threads without chip removal, eliminating tapping operations and reducing assembly steps. The external hex drive allows for high torque application, ensuring tight fastening in steel and sheet metal applications where vibration resistance is critical. The fully threaded configuration maximizes grip length, while the flanged head provides superior clamping force distribution. Engineered for industrial screw applications requiring durability and corrosion resistance, these fasteners solve common challenges of time-consuming pre-drilling and thread preparation in metal joining processes.

Specification Summary & Compliance

This No. 8 size tapping screw features a 0.164" thread diameter with 18 TPI right-hand threads and 1-1/4" length. The external hex head measures 1/4" across flats with 0.141" height, complemented by a 0.348" flange diameter. Manufactured to thread-forming standards with BSD tapping screw configuration, it includes a No. 2 drill tip type with 3/16" tip length capable of drilling up to 0.098" maximum thickness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations.