S-90380A005 Length 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior holding power in plastic with the tri-lobe shank design that forms strong, permanent threads without creating chips.
• Enhanced corrosion resistance from the zinc-plated steel construction, ensuring long-term reliability in various environments.
• Efficient and secure installation with the Phillips No. 1 drive, providing a positive grip and reducing cam-out for faster assembly.
• Maximum thread engagement due to the fully threaded design, distributing load evenly for a more robust and vibration-resistant connection.
• Optimized for plastic materials with a blunt tip and thread-forming (TRS) action, minimizing stress cracking and ensuring a tight, reliable fit.
• Simplified sourcing and compliance by meeting RoHS 3 and REACH regulations, making them suitable for global industrial and consumer product applications.
• Precision sizing with a 1/4" length and No. 2 screw size, ensuring consistent performance and interchangeability in plastic assemblies.

Professional Applications & Engineering Value

These No. 2 zinc-plated steel TRS tapping screws are engineered to address common challenges in plastic fastening, such as material cracking and weak thread retention. The thread-forming (TRS) design with a tri-lobe shank displaces plastic material to create strong, clean threads without generating debris, which is critical in electronics, automotive trim, and appliance assemblies where integrity is paramount. The zinc-plated finish provides a protective barrier against corrosion, extending service life in humid or demanding conditions. Combined with a Phillips drive for efficient installation, these screws ensure reliable, high-strength connections that resist loosening under vibration, making them ideal for industrial plastic assembly applications requiring durability and compliance.

Specification Summary & Compliance

This product features a No. 2 screw size with a thread diameter of 0.086" and approximately 28 threads per inch, designed for use with a No. 47 drill bit (0.0785" diameter) in plastic materials. It adheres to standard right-hand thread and fully threaded specifications for consistent performance. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring they are free of hazardous substances and meet rigorous industrial safety and environmental standards.