S-90380A272 Length 3/16" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in various industrial environments
• Excellent thread-forming capability with TRS tri-lobe shank design that creates strong, permanent threads in plastic materials
• Enhanced driving efficiency through Phillips No. 1 drive that minimizes cam-out and ensures secure installation
• Maximum holding power with fully threaded design that provides complete engagement along the entire screw length
• Optimized plastic fastening with blunt tip and 20 threads per inch for reduced material stress and cracking
• Reliable industrial compliance meeting RoHS 3 and REACH environmental standards for global manufacturing requirements
• Precision compatibility with No. 37 drill bit (0.104" diameter) for proper hole preparation and optimal performance

Professional Applications & Engineering Value

These No. 4 x 3/16" zinc-plated steel TRS tapping screws are specifically engineered for challenging plastic assembly applications where traditional fastening methods often fail. The thread-forming TRS design with tri-lobe shank cross-section displaces plastic material rather than cutting it, creating zero-clearance threads that significantly reduce the risk of loosening from vibration or thermal cycling. The Phillips drive system ensures consistent torque application during installation, while the pan head style provides a low-profile finish with excellent bearing surface. Ideal for plastic components in automotive trim, electronics enclosures, and consumer products, these screws eliminate the need for inserts while maintaining material integrity through controlled expansion forces.

Specification Summary & Compliance

Manufactured to precise dimensional standards with 0.112" thread diameter and 20 threads per inch in right-hand direction. Features Class 2A thread tolerances for consistent performance and fully threaded design for maximum engagement. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in global industrial applications. Designed for use with No. 37 drill bit (0.104" diameter) to achieve optimal thread formation in plastic materials.