S-90434A119 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
• Exceptional plastic material retention through advanced tri-lobe shank design that prevents loosening under vibration and stress
• Efficient installation process with Phillips No. 3 drive system providing reliable torque transfer and reduced cam-out incidents
• Clean flush-mount finishing achieved through 82° countersink angle and standard flat head profile for professional appearance
• Reliable thread-forming capability that creates strong, permanent threads in plastic materials without pre-tapping requirements
• Full-length threading design ensures maximum grip length and uniform stress distribution across the entire fastened joint
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe use in global industrial applications

Professional Applications & Engineering Value

These 1/4" TRS tapping screws deliver exceptional engineering value in plastic fastening applications where vibration resistance and material integrity are critical. The zinc-plated steel construction provides essential corrosion protection while maintaining high tensile strength. The innovative tri-lobe shank cross-section and thread forming design create permanent, high-retention threads in plastic substrates, eliminating the need for separate inserts or helicoils. This makes them ideal for industrial plastic assemblies in automotive components, electrical enclosures, and consumer products where Phillips drive compatibility is preferred for efficient production line installation. The combination of 82° countersink angle and flat head profile ensures seamless surface integration while the blunt tip prevents material splitting during installation.

Specification Summary & Compliance

These thread forming screws feature precision 1/4" thread diameter with 10 threads per inch and right-hand threading throughout the 1/2" length. Manufactured to TRS (Thread Rolling Screw) specifications with standard flat head profile and No. 3 Phillips drive compatibility. The product maintains dimensional accuracy suitable for plastic fastening applications with recommended drill bit size A (0.234" diameter). Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures suitability for global industrial markets and restricted substance requirements.