S-90485A463 Length 8 mm Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in various environments
• Efficient thread forming with TRS design reduces installation torque and prevents plastic cracking during assembly
• Flush mounting capability thanks to the 90° countersink angle and flat head profile for smooth, professional finishes
• Optimized for plastic materials with blunt tip and fully threaded shank to maximize pull-out resistance and holding power
• Reliable drive engagement with No. 2 Phillips drive providing secure torque transmission and reduced cam-out risk
• Precision metric sizing (M4 x 8mm) ensures consistent performance and compatibility with standard plastic components
• Environmental compliance meeting RoHS 3 and REACH standards for safe use in regulated industries

Professional Applications & Engineering Value

These M4 metric tapping screws are specifically engineered to address common challenges in plastic assembly applications. The 18-8 stainless steel construction provides excellent corrosion resistance while maintaining sufficient ductility for thread forming operations. The TRS (Thread Rolling Screw) design with 1.79mm pitch creates strong, permanent threads in plastic materials without generating chips, eliminating contamination risks. The Phillips flat head configuration with 90° countersink angle ensures flush mounting in pre-drilled holes using No. 30 drill bits, providing clean aesthetics and preventing snagging. This combination of features makes these plastic fasteners ideal for electronics enclosures, automotive trim, consumer products, and industrial equipment where reliable, vibration-resistant connections in plastic substrates are critical.

Specification Summary & Compliance

These metric tapping screws feature M4 diameter with 1.79mm thread pitch and 8mm length, manufactured to precise dimensional standards for consistent performance. The thread forming design follows industry standards for plastic fastening applications. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and restricted substance adherence for global manufacturing requirements.