S-99397A072 Length 8 mm Tapping Screws

Key Features & Benefits at a Glance

• Enhanced Thread Forming: The Tri-Lobe shank design creates secure, reliable threads in plastic materials, reducing the risk of stripping and ensuring consistent holding power.
• Superior Corrosion Resistance: Made from 18-8 Stainless Steel, this screw offers excellent durability and long-term performance in humid or corrosive environments.
• High-Torque Drive System: The Torx Plus IP6/T6 drive provides superior cam-out resistance, allowing for higher torque application and reducing tool wear and damage.
• Optimized for Plastic Assembly: The thread forming (TRS) design and blunt tip minimize stress cracking in plastics, ensuring a clean, secure fit without pre-tapping.
• Precision Fit and Alignment: With a specified No. 51 drill bit (0.067" diameter), installation is precise, ensuring optimal thread engagement and joint integrity.
• Full Thread Engagement: The fully threaded 8mm length maximizes grip and pull-out strength in various plastic thicknesses.
• Regulatory Compliance Assurance: Compliant with RoHS 3 and REACH regulations, making it suitable for use in sensitive and regulated industries.

Professional Applications & Engineering Value

This M1.91 x 8mm Torx Plus TRS tapping screw is engineered to address common challenges in plastic assembly, such as material cracking and thread failure. The 18-8 Stainless Steel construction ensures corrosion resistance, which is critical for electronics, automotive components, and outdoor equipment exposed to moisture. The Tri-Lobe shank and thread forming (TRS) design displace plastic material during installation, creating strong, permanent threads without the need for inserts or adhesives. This reduces assembly time and cost while improving joint reliability. The Torx Plus drive (IP6/T6) minimizes slippage, allowing for consistent torque in high-volume production lines. Ideal for securing plastic housings, panels, and internal components, this screw delivers dependable performance in demanding industrial fastening applications.

Specification Summary & Compliance

This metric screw features a 0.79mm thread pitch and fully threaded M1.91 x 8mm design with a right-hand thread direction. It is manufactured to precise dimensional standards for reliable performance in plastic materials. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety requirements for industrial use.