S-99512A672 Length 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior torque transfer with T20 Torx drive design that prevents cam-out and allows for higher installation torque
• Enhanced corrosion resistance through Black-Oxide Steel construction for extended service life in various environments
• Reliable thread forming with TRS Tri-Lobe shank design that creates strong, secure threads in plastic materials without cracking
• Optimized plastic fastening with 16 TPI thread pitch specifically engineered for plastic applications
• Full-threaded design ensures maximum holding power along the entire 3/4" length for secure fastening
• Rounded pan head profile provides a finished appearance while distributing clamping force effectively
• Environmental compliance meeting RoHS 3 and REACH standards for safe use in regulated industries

Professional Applications & Engineering Value

These No. 8 TRS plastic tapping screws are engineered specifically for plastic fastening applications where traditional fasteners fail. The thread-forming TRS design with Tri-Lobe shank cross-section displaces plastic material rather than cutting it, creating stronger threads that resist stripping and pull-out. The Black-Oxide Steel construction provides essential corrosion protection while maintaining the hardness needed for repeated installations. With T20 Torx drive, manufacturers achieve higher torque application without tool slippage, reducing assembly time and improving production efficiency. These screws are ideal for plastic assembly in automotive components, electronics enclosures, and consumer products where vibration resistance and long-term reliability are critical.

Specification Summary & Compliance

These inch-system fasteners feature a No. 8 thread diameter (0.164") with 16 TPI thread pitch and 3/4" fully threaded length. The TRS thread-forming design operates with a recommended No. 23 drill bit (0.154" diameter) for proper hole preparation. Manufactured to industry standards for thread-forming tapping screws, these fasteners are RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, ensuring they meet current environmental regulations for hazardous substances.