S-90417A126 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior vibration resistance through the Tri-Lobe shank design, which creates secure, long-lasting fastenings in plastic materials without loosening.
• High torque transmission enabled by the No. 2 Phillips drive, allowing for efficient installation and reducing the risk of drive slippage.
• Excellent corrosion protection from the Black-Oxide Steel finish, extending the screw's service life in various industrial environments.
• Reliable thread forming with the TRS design, which forms strong internal threads in plastic without creating chips, ensuring clean and durable assemblies.
• Full-length threading (0.138" diameter, 19 TPI) provides consistent holding power along the entire screw length for enhanced joint integrity.
• Optimized for plastic applications, the blunt tip and thread forming method minimize stress cracking and material damage during installation.
• Compliance with environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries and global markets.

Professional Applications & Engineering Value

These TRS thread forming screws are engineered specifically for plastic fastening challenges, where traditional screws may cause cracking or strip threads. The Tri-Lobe shank cross-section and thread forming tapping method displace material radially, creating strong, zero-clearance threads that resist back-out under vibration—a common issue in automotive, electronics, and appliance assemblies. Made from Black-Oxide Steel, they offer enhanced durability and minimal galling, while the No. 2 Phillips drive ensures straightforward installation with standard tools. Ideal for securing plastic housings, panels, and components, these screws deliver reliable performance without pre-drilling in many thermoplastics, streamlining production and reducing assembly costs.

Specification Summary & Compliance

This 0.138" x 1/2" screw features a No. 6 thread size with 19 TPI and is fully threaded for uniform load distribution. It conforms to standard inch measurements and is designed for use with a 1/8" drill bit. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance requirements, ensuring it is free of restricted hazardous substances and safe for industrial and consumer applications.