S-90380A110 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ensuring long-term reliability in various environments.
• Excellent thread-forming capability in plastics, thanks to the TRS tri-lobe shank design that reduces stress and prevents material cracking.
• Secure and efficient installation with Phillips No. 1 drive, providing reliable torque transfer and reducing cam-out risks.
• Maximum holding power from fully threaded design, ensuring consistent fastening strength across the entire length.
• Wide compatibility with standard No. 37 drill bits (0.104" diameter), simplifying hole preparation and reducing assembly time.
• Durable pan head style offering a low-profile, rounded finish that resists snagging and provides a neat appearance.
• Compliance with environmental regulations including RoHS 3 and REACH, making them suitable for global industrial and consumer applications.

Professional Applications & Engineering Value

These No. 4 x 1/2" zinc-plated steel TRS thread forming screws are engineered specifically for plastic fastening applications, addressing common challenges like material stress and thread stripping. The tri-lobe shank cross-section displaces plastic material during installation, creating strong, permanent threads without generating chips. This design minimizes the risk of boss cracking in brittle plastics, ensuring reliable performance in plastic assembly for automotive components, electronic enclosures, and consumer goods. The Phillips drive ensures straightforward installation with standard tools, while the zinc plating provides a protective barrier against corrosion, extending service life in humid or industrial settings. Ideal for high-volume production, these screws deliver consistent thread forming efficiency and reduce assembly failures.

Specification Summary & Compliance

This TRS tapping screw features a thread diameter of 0.112" with approximately 20 threads per inch, ensuring precise engagement in pre-drilled holes. Manufactured to standard inch system dimensions, it includes a blunt tip and fully threaded design for uniform load distribution. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of restricted hazardous substances. Designed for use with a No. 37 drill bit (0.104" diameter), it supports efficient installation in various plastic materials, meeting industry requirements for safety and environmental responsibility.