S-99512A633 Length 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior torque transmission with T15 Torx drive design, reducing cam-out and tool wear during high-torque applications
• Enhanced corrosion resistance through zinc-plated steel construction, ensuring long-term reliability in various environments
• Secure plastic fastening with thread-forming TRS design that creates strong, vibration-resistant threads without pre-tapping
• Reduced installation stress thanks to tri-lobe shank and blunt tip design, minimizing cracking in plastic materials
• Full-length threading provides maximum grip and holding power across the entire 1-1/4" length
• Precise dimensional accuracy with No. 6-32 thread specification (0.138" diameter, 19 TPI) for consistent performance
• Environmental compliance meeting RoHS 3 and REACH standards for safe, sustainable manufacturing

Professional Applications & Engineering Value

These zinc-plated steel TRS tapping screws deliver exceptional value in plastic assembly applications where vibration resistance and material integrity are critical. The thread-forming design eliminates the need for pre-tapped holes, creating strong mating threads in thermoplastic materials while the tri-lobe shank cross-section displaces material efficiently to prevent stress cracking. The T15 Torx drive system ensures maximum torque transfer without stripping, making these plastic fasteners ideal for high-volume production environments. With fully threaded construction and blunt tip design, installation is streamlined while maintaining secure, long-lasting connections in electronic enclosures, automotive trim, and industrial plastic components.

Specification Summary & Compliance

This No. 6-32 x 1-1/4" plastic tapping screw features precise inch system measurements with 0.138" thread diameter and 19 threads per inch. The TRS (Thread Rolling Screw) design follows standard thread-forming specifications with tri-lobe shank geometry. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring restricted substance compliance. The zinc-plated steel construction provides consistent performance with right-hand threading and standard pan head profile for professional fastening applications.