S-90434A183 Length 4 mm Tapping Screws

Key Features & Benefits at a Glance

• Eliminates pre-tapping requirements with thread-forming TRS design, reducing assembly time and labor costs in plastic applications
• Superior corrosion resistance through zinc-plated steel construction, ensuring long-term reliability in industrial environments
• Optimized for plastic materials with blunt tip and 0.89mm pitch threading to prevent material cracking while maintaining secure fastening
• Streamlined installation process with Phillips #0 drive and standard flat head profile for flush mounting with 90° countersink angles
• Maximum thread engagement through fully threaded design, providing enhanced holding power across the entire screw length
• Precision compatibility with 1.5mm drill bit size, ensuring proper fit and reducing installation errors in plastic components
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industrial applications

Professional Applications & Engineering Value

These M2 TRS tapping screws are engineered specifically for plastic fastening applications where traditional threading methods prove problematic. The thread-forming technology creates precise mating threads in plastic materials without generating chips or debris, eliminating the risk of contamination in sensitive assemblies. The zinc-plated steel construction provides essential corrosion protection while maintaining the strength required for durable plastic connections. With right-hand threading and fully threaded design, these screws distribute clamping force evenly, preventing stress concentration that can lead to plastic fatigue or cracking. The combination of standard flat head profile and Phillips #0 drive ensures secure, flush installations in electronic enclosures, automotive trim, consumer products, and industrial equipment where reliable plastic-to-plastic or plastic-to-metal connections are critical.

Specification Summary & Compliance

This metric tapping screw features M2 diameter with 4mm length and 0.89mm approximate thread pitch, designed with thread forming (TRS) technology for plastic materials. The screw maintains standard dimensional accuracy with fully threaded configuration and blunt tip design optimized for plastic applications. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for industrial use. Installation requires 1.5mm drill bit size with 90° countersink angle for proper flush mounting.