S-99397A611 Length 4 mm Tapping Screws

Key Features & Benefits at a Glance

• Superior torque transmission with Torx Plus IP10 drive system for reduced cam-out and increased tool life
• Excellent corrosion resistance through zinc-plated steel construction for extended service life in various environments
• Secure plastic fastening with TRS thread forming design that creates strong, vibration-resistant threads without chips
• Enhanced driving stability through tri-lobe shank cross-section that prevents rotation during installation
• Optimal material engagement with fully threaded M3.12 design and 1.27mm pitch for maximum holding power in plastic assemblies
• Streamlined installation process with pan head design and blunt tip for easy alignment and consistent seating
• Environmental compliance assurance meeting RoHS 3 and REACH standards for global manufacturing requirements

Professional Applications & Engineering Value

These M3.12 TRS thread forming screws are engineered specifically for plastic assembly applications where traditional fastening methods often fail. The tri-lobe shank design creates compressive forces during installation, generating secure, permanent threads in plastic materials without creating chips that could contaminate sensitive components. The Torx Plus IP10 drive system delivers exceptional torque transmission, eliminating the stripping issues common with Phillips and slotted drives in automated assembly environments. Made from zinc-plated steel, these screws provide reliable corrosion protection while maintaining the strength needed for long-term performance in consumer electronics, automotive trim, and industrial equipment applications where plastic-to-plastic or plastic-to-metal fastening is required.

Specification Summary & Compliance

This metric TRS tapping screw features M3.12 diameter with 4mm length and 1.27mm thread pitch, manufactured to precise dimensional standards for consistent performance. The thread forming design eliminates the need for pre-tapped holes while creating strong, reliable threads in plastic materials. The screw complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for global manufacturing and distribution. The combination of Torx Plus IP10 drive, tri-lobe shank geometry, and zinc-plated steel construction provides a complete fastening solution optimized for plastic assembly applications requiring high reliability and compliance with international standards.