S-90485A380 Length 1" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for humid or demanding industrial environments.
• Excellent thread-forming capability in plastics, reducing the risk of material cracking and ensuring secure, long-lasting assemblies.
• Enhanced driving efficiency with a Phillips No. 3 drive and flat head, providing a flush finish and reliable installation.
• Optimized holding power through the Tri-Lobe shank design and fully threaded right-hand configuration for maximum pull-out resistance.
• Wide compatibility with standard 5.5mm (0.2165") drill bits and an 82° countersink angle, simplifying installation in various plastic components.
• Regulatory compliance assurance with RoHS 3 and REACH standards, meeting strict industrial safety and environmental requirements.
• Dimensional precision with a 1/4" diameter and 10 threads per inch, ensuring consistent performance and interchangeability.

Professional Applications & Engineering Value

This 1/4" TRS tapping screw is specifically engineered for plastic fastening applications, where traditional screws may cause stress cracking or insufficient grip. The 18-8 stainless steel material offers excellent durability and resistance to oxidation, making it suitable for outdoor, marine, or chemically exposed settings. Its thread forming (TRS) design with a Tri-Lobe shank cross-section displaces plastic material during installation, creating strong, permanent threads without pre-tapping. This reduces assembly time and tooling costs while minimizing the risk of part failure. The flat head with Phillips drive ensures a clean, flush finish, ideal for aesthetic or safety-critical components in automotive, electronics, and consumer goods manufacturing. Fully threaded and right-hand configured, it delivers uniform clamping force across the entire length, enhancing joint integrity in plastic assemblies.

Specification Summary & Compliance

This screw adheres to standard inch measurements with a 1/4" thread diameter and 10 threads per inch, providing precise fit in accordance with common thread forming screw specifications. The flat head profile and 82° countersink angle conform to typical industrial requirements for flush mounting. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for use in various markets. Manufactured to deliver reliable performance in plastic materials, it meets industry standards for dimensional accuracy and mechanical properties.