S-99397A068 Length 6 mm Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and long-term reliability.
• Enhanced torque transmission and reduced cam-out thanks to the Torx Plus IP6 drive, ensuring secure fastening and minimal tool wear.
• Excellent holding power in plastic materials through the TRS thread forming design, which creates strong, durable threads without pre-tapping.
• Secure and vibration-resistant fastening from the fully threaded tri-lobe shank, providing superior pull-out resistance.
• Streamlined assembly process with a standard pan head and blunt tip, allowing for easy insertion and consistent seating.
• Environmental and regulatory compliance meeting RoHS 3 and REACH standards, ensuring safe use in various industries.
• Precision fit and reduced installation errors with a consistent 0.79 mm thread pitch and compatibility with a No. 51 drill bit.

Professional Applications & Engineering Value

This M1.91 x 6mm metric TRS tapping screw is specifically engineered for plastic applications, where traditional fasteners may strip or fail. The 18-8 stainless steel material offers excellent corrosion resistance, crucial for electronics, automotive, and outdoor equipment exposed to moisture. Its thread forming (TRS) design with a tri-lobe shank displaces plastic material to form strong, permanent threads, eliminating the need for inserts and reducing assembly costs. The Torx Plus IP6 drive ensures high torque transfer, minimizing slippage and damage to the screw head, which is vital for automated production lines. Combined with a right-hand thread and fully threaded body, it provides reliable clamping force in thermoplastics and other soft materials, preventing loosening under vibration and thermal cycling.

Specification Summary & Compliance

This screw features a metric M1.91 size with an approximate thread pitch of 0.79 mm and a fully threaded tri-lobe shank for thread forming applications. It includes a pan head with Torx Plus IP6 (T6) drive, blunt tip, and is designed for use with a No. 51 drill bit (0.067"). The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for global industrial use.