S-99461A213 Length 1 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
• Exceptional holding power in plastics due to the thread forming (TRS) design and tri-lobe shank, which prevents loosening and ensures a secure, vibration-resistant fit.
• Streamlined installation process with a No. 2 Phillips drive, allowing for quick and easy driving without the need for pre-tapped holes.
• Optimized for plastic assembly, featuring a blunt tip and fully threaded design to minimize material stress and cracking during installation.
• Reliable dimensional consistency with a precise No. 8 screw size and 16 threads per inch, ensuring repeatable performance in automated or manual applications.
• Compliance with strict environmental standards, including RoHS 3 and REACH, making them suitable for regulated industries and global supply chains.
• Reduced installation complexity as they are designed for use with a standard No. 29 drill bit (0.136" diameter), simplifying the preparation process.

Professional Applications & Engineering Value

These 18-8 stainless steel TRS plastic tapping screws are engineered to address common challenges in plastic fastening, such as material stripping, stress cracking, and corrosion-induced failure. The thread forming design and tri-lobe shank create strong, permanent threads in plastic substrates, distributing load evenly to prevent pull-out and maintain integrity under dynamic loads. This makes them ideal for industrial assembly, electronics enclosures, automotive components, and construction applications where vibration resistance and durability are critical. The Phillips drive ensures compatibility with standard tools, reducing installation time and labor costs, while the fully threaded profile maximizes grip length for enhanced stability in varied material thicknesses.

Specification Summary & Compliance

This product adheres to standard inch measurements with a No. 8 screw size, 1-1/2" length, and 16 threads per inch for consistent fit. The thread forming (TRS) tapping method and tri-lobe shank cross-section ensure reliable performance in plastic applications without requiring pre-threaded holes. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances and supporting use in environmentally conscious manufacturing processes.