S-99512A643 Length 2" Tapping Screws

Key Features & Benefits at a Glance

• Superior holding power in plastic thanks to the Tri-Lobe shank design that creates secure, vibration-resistant connections
• High-torque installation capability with the T20 Torx drive, reducing cam-out and tool wear for efficient assembly
• Excellent corrosion resistance provided by the zinc-plated steel construction, ensuring long-term durability in various environments
• Reliable thread forming action using the TRS design, which forms strong threads in plastic without creating chips
• Full-length threading for maximum grip along the entire 2" length, distributing stress evenly
• Optimized for plastic applications with blunt tip and specific thread pitch (16 TPI) to prevent material cracking
• Secure regulatory compliance meeting RoHS 3 and REACH standards for safe industrial use

Professional Applications & Engineering Value

These No. 8 x 2" zinc-plated steel tapping screws are engineered specifically for plastic fastening applications where material integrity is paramount. The TRS thread forming technology eliminates the risk of plastic cracking during installation by displacing material rather than cutting it, while the Tri-Lobe shank cross-section provides exceptional resistance to vibration loosening. The T20 Torx drive system ensures high torque transmission without stripping, making these thread forming screws ideal for automated assembly lines and high-volume production environments. With their fully threaded design and optimized 0.164" thread diameter, they deliver maximum pull-out strength in plastic components across automotive, electronics, and industrial equipment sectors.

Specification Summary & Compliance

These tapping screws feature a No. 8 screw size with 0.164" thread diameter and 16 TPI thread pitch, manufactured to precise inch system specifications. The pan head style with T20 Torx drive provides a low-profile, high-torque fastening solution. The screws are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring they meet the latest environmental and safety standards for industrial applications. The thread forming design follows industry-standard TRS specifications for plastic fastening applications.