S-99512A669 Length 3/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with Black-Oxide Steel coating for extended service life in demanding environments
• Maximum holding power in plastic applications thanks to the Tri-Lobe shank design that creates secure, vibration-resistant connections
• Enhanced torque transfer and strip-resistance with T20 Torx drive for reliable installation and reduced tool slippage
• Efficient thread forming action that displaces material without cutting, creating strong threads in plastic substrates
• Streamlined assembly process with fully threaded design and blunt tip for easier starting and consistent driving performance
• Environmental compliance assurance meeting RoHS 3 and REACH standards for responsible manufacturing and usage
• Optimized size compatibility with No. 8 diameter and 3/8" length designed specifically for plastic fastening applications

Professional Applications & Engineering Value

These No. 8 x 3/8" TRS thread forming screws deliver exceptional engineering value for plastic assembly applications where vibration resistance and long-term reliability are critical. The Black-Oxide Steel construction provides superior corrosion protection, while the Tri-Lobe shank design creates permanent, high-retention threads in plastic materials without generating chips or debris. The T20 Torx drive ensures maximum torque transfer during installation, reducing the risk of cam-out and damage to fastener heads. Engineered specifically for plastic fastening, these thread forming screws eliminate the need for pre-tapped holes, streamlining production processes while providing secure, vibration-resistant connections that maintain integrity under dynamic loads and thermal cycling conditions common in industrial environments.

Specification Summary & Compliance

These thread forming screws feature precise inch system dimensions including No. 8 thread diameter (0.164"), 3/8" length, and 16 TPI right-hand threads with Class 2A tolerance. The TRS (Thread Rolling Screw) design incorporates a Tri-Lobe shank cross-section and blunt tip for optimal performance in plastic substrates. Manufactured to industry standards with RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) compliance, ensuring environmental responsibility and regulatory adherence for global industrial applications.