S-92400A460 Length 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments.
• Efficient thread forming in plastics with the TRS tri-lobe shank design, creating strong, reliable threads without pre-tapping.
• High-torque installation capability provided by the 3/8" external hex head for secure and easy driving with standard tools.
• Full-length threading ensures maximum grip and holding power along the entire 1-1/4" length for robust assemblies.
• Optimized for plastic materials with a blunt tip and thread-forming action to prevent material cracking and ensure a secure fit.
• Simplified installation process with a specified 5.5mm (0.2165") drill bit size for precise hole preparation and consistent performance.
• Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe and sustainable use in various industries.

Professional Applications & Engineering Value

This zinc-plated steel TRS tapping screw is engineered specifically for plastic fastening applications where material integrity is paramount. The unique tri-lobe shank design displaces plastic material during installation, forming permanent, high-strength threads that resist loosening under vibration and thermal cycling. Unlike cutting screws, this thread forming action eliminates chips and debris, making it ideal for electronics, automotive components, and appliance assemblies where contamination must be avoided. The external hex drive and fully threaded construction allow for deep engagement and consistent clamping force, while the zinc plating provides essential corrosion protection for both indoor and protected outdoor environments. This combination delivers reliable, long-term performance in plastic fastener applications while reducing assembly time and improving joint reliability.

Specification Summary & Compliance

This 1/4" TRS tapping screw features a right-hand thread with approximately 10 threads per inch and a 1-1/4" length. It includes a 3/8" hex head with 0.24" height and 0.52" flange diameter. Manufactured to industry standards for thread forming screws, this product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for global supply chain requirements.