S-90380A146 Length 3/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior holding power in plastic with the tri-lobe shank design that forms strong, permanent threads without pre-tapping
• Corrosion-resistant zinc-plated steel construction ensures long-term durability and reliability in various industrial environments
• Efficient Phillips No. 2 drive allows for quick installation with common tools, reducing assembly time and labor costs
• Optimized thread-forming design with 19 threads per inch creates secure, vibration-resistant fastenings in plastic materials
• Fully threaded blunt tip design provides maximum thread engagement and prevents material splitting during installation
• Precision compatibility with standard 1/8" drill bits streamlines your assembly process and reduces preparation time
• Global compliance assurance meets RoHS 3 and REACH environmental standards for international manufacturing applications

Professional Applications & Engineering Value

These No. 6 x 3/8" zinc-plated steel TRS tapping screws are engineered specifically for plastic assembly applications where traditional fastening methods fall short. The thread-forming TRS design eliminates the need for separate tapping operations by creating strong, clean threads directly in plastic substrates through material displacement rather than cutting. This tri-lobe shank cross-section provides superior resistance to vibration loosening and pull-out forces, making them ideal for plastic components in automotive trim, electronic enclosures, and consumer products. The combination of Phillips drive and precise 0.138" thread diameter ensures consistent installation torque and reliable performance across high-volume production runs, while the zinc-plated surface treatment protects against corrosion in demanding environments.

Specification Summary & Compliance

These thread-forming tapping screws feature a No. 6 screw size with 3/8" length and 0.138" thread diameter with approximately 19 threads per inch in right-hand orientation. The pan head style with 0.27" head diameter provides excellent bearing surface, while the Phillips No. 2 drive ensures secure tool engagement. Manufactured to precise dimensional standards for reliable performance, these screws are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, making them suitable for global manufacturing and environmental requirements.