S-90380A313 Length 3/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in various industrial environments
• Excellent vibration resistance and holding power thanks to the Tri-Lobe shank design that prevents loosening in plastic materials
• Reduced installation time and effort with thread forming technology that creates strong threads without pre-tapping
• Wide compatibility with standard No. 3 Phillips drive tools for efficient installation across different workstations
• Optimal material displacement control through the blunt tip design, minimizing stress cracking in plastic components
• Full-length threading ensures maximum grip along the entire fastener length for enhanced joint integrity
• Environmental compliance assurance with RoHS 3 and REACH regulations, meeting global sustainability standards

Professional Applications & Engineering Value

These zinc-plated steel TRS tapping screws are engineered specifically for plastic fastening applications where traditional fasteners often fail. The thread forming technology creates precise mating threads in plastic substrates without generating chips, eliminating contamination risks in sensitive assemblies. The Tri-Lobe shank cross-section provides exceptional resistance to vibrational loosening while the pan head design offers a low-profile finish with excellent bearing surface. Ideal for plastic fabrication, electronic enclosures, automotive trim components, and consumer products, these screws solve common challenges of strip-out, material cracking, and joint failure in polymer-based assemblies. The combination of Phillips drive compatibility and precise thread forming action ensures reliable performance in high-volume manufacturing environments.

Specification Summary & Compliance

This 1/4"-10 x 3/8" TRS tapping screw features precision right-hand threads with approximately 10 threads per inch and full threading along the entire 3/8" length. Manufactured to exacting standards with a 0.476" head diameter and 0.169" head height pan head profile. The screw is designed for use with 0.234" drill bit size (Size A) and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets while maintaining consistent dimensional accuracy for reliable performance in industrial plastic fastening applications.