S-99512A638 Length 3/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in various environments
• Maximum torque transfer and reduced cam-out with T20 Torx drive for reliable, efficient installation
• Strong, permanent threads in plastic materials through TRS thread forming design that eliminates the need for separate tapping
• Enhanced pull-out resistance with Tri-Lobe shank cross-section that provides superior holding power in plastic assemblies
• Optimized for plastic applications with blunt tip and fully threaded design for secure, consistent fastening
• Simplified installation process using standard No. 23 drill bit (0.154" diameter) for precise hole preparation
• Compliance with international safety standards including RoHS 3 and REACH for environmentally responsible manufacturing

Professional Applications & Engineering Value

These No. 8 x 3/8" T20 Torx zinc-plated steel tapping screws are specifically engineered to address common challenges in plastic assembly applications. The TRS thread forming design creates durable, permanent threads in plastic materials without generating chips, eliminating the risk of contamination in sensitive electronic or automotive components. The Tri-Lobe shank cross-section provides exceptional resistance to vibration loosening and pull-out forces, ensuring long-term reliability in demanding industrial environments. With 16 threads per inch and 0.164" thread diameter, these screws deliver optimal thread engagement while the zinc-plated steel construction offers reliable corrosion protection for both indoor and outdoor applications. The T20 Torx drive system enables higher torque application compared to traditional drive types, reducing installation time and improving production efficiency in high-volume manufacturing settings.

Specification Summary & Compliance

These thread forming tapping screws feature precise dimensional accuracy with No. 8 screw size and 3/8" length, engineered for optimal performance in plastic materials. The TRS thread forming design with Tri-Lobe shank ensures consistent thread creation without chip formation. Manufacturing and material compliance includes full adherence to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety and industrial standard compliance. The screw is designed for use with No. 23 drill bit (0.154" diameter) for proper hole preparation and features right-hand threading with fully threaded configuration for maximum holding strength.