S-90380A106 Length 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
• Efficient thread-forming capability through tri-lobe shank design creates strong, permanent threads in plastic materials without chips
• Optimized plastic fastening performance with blunt tip and TRS thread design that minimizes material stress and cracking
• Secure drive engagement with Phillips No. 1 drive style providing reliable torque transmission during installation
• Maximum holding power through fully threaded design ensuring consistent clamping force along the entire fastener length
• Streamlined assembly process with precise No. 37 drill bit compatibility (0.104") for proper hole preparation
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global manufacturing applications

Professional Applications & Engineering Value

These No. 4 x 1/4" zinc-plated steel TRS tapping screws are engineered specifically for plastic fastening applications where material integrity is critical. The thread-forming TRS design with tri-lobe shank cross-section displaces plastic material rather than cutting it, creating zero clearance threads that resist loosening from vibration. This Phillips drive screw configuration with pan head style provides reliable installation in automated assembly processes while the zinc-plated steel construction ensures corrosion resistance in various industrial environments. The blunt tip design prevents material splitting in delicate plastic components, making these thread forming screws ideal for electronics enclosures, automotive plastic assemblies, and consumer products where secure, permanent fastening is essential.

Specification Summary & Compliance

These tapping screws feature precise dimensional specifications including 0.112" thread diameter, 20 threads per inch, and 1/4" length with Class 2A thread tolerances. The TRS thread forming screws comply with industry standards for plastic fastening applications and are manufactured to ensure consistent performance. Regulatory compliance includes full adherence to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) requirements, making them suitable for global manufacturing and export applications where environmental regulations are strictly enforced.