S-90122A321 Length 1 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Eliminates pre-drilling with integrated No. 3 drill tip, saving time and labor costs in assembly operations.
• Superior corrosion resistance from the coated alloy steel material, ensuring long-term reliability in harsh industrial environments.
• Excellent grip and load distribution provided by the flanged hex head design, reducing the risk of material damage and loosening.
• High-strength thread forming (BSD) creates secure, vibration-resistant threads in aluminum and sheet metal up to 0.187" thick.
• Full threading along the 1-1/2" length offers maximum engagement and pull-out strength for critical fastening applications.
• External hex drive allows for high-torque installation with standard tools, ensuring efficient and consistent fastening.
• Compliance with RoHS 3 standards guarantees environmentally safe materials for use in regulated industries.

Professional Applications & Engineering Value

These self-drilling screws are precision-engineered to address common challenges in fastening aluminum and sheet metal. The Ultra-Corrosion-Resistant Coated Alloy Steel construction prevents rust and degradation, extending service life in outdoor or corrosive settings. The thread-forming BSD design cold-forms threads as it drives, eliminating chip removal and providing superior resistance to vibration loosening compared to thread-cutting alternatives. With a No. 3 drill tip capable of penetrating up to 0.187" thickness, these screws streamline production by removing the pre-drilling step, reducing assembly time and tooling requirements. The flanged hex head distributes clamp load effectively, minimizing the risk of surface dimpling in thin materials, making them ideal for HVAC, metal framing, and automotive assembly applications where durability and efficiency are critical.

Specification Summary & Compliance

This screw meets standard inch system dimensions with a No. 12 screw size, 14 TPI fully threaded right-hand thread, and a 1-1/2" length. The external hex drive and flanged head ensure precise installation and secure fastening. Manufactured in compliance with RoHS 3 (2015/863/EU) regulations, these screws are free of hazardous substances, making them suitable for use in environmentally conscious industrial and construction projects.