S-99397A066 Length 5 mm Tapping Screws

Key Features & Benefits at a Glance

• Superior torque transmission and reduced tool wear with Torx Plus IP6 drive, minimizing cam-out for efficient assembly
• Excellent corrosion resistance and durability provided by 18-8 stainless steel material, ideal for harsh environments
• Reliable thread forming in plastics with Tri-Lobe shank design, creating strong, vibration-resistant threads without pre-tapping
• Optimized for plastic applications with blunt tip and right-hand thread, preventing material damage during installation
• Secure fastening with full threading and 0.79mm pitch, ensuring maximum holding power across the entire 5mm length
• Environmental compliance assurance meeting RoHS 3 and REACH standards for safe use in regulated industries
• Standard pan head design with 4mm diameter for consistent seating and professional appearance in finished products

Professional Applications & Engineering Value

This M1.91 x 5mm Torx Plus TRS tapping screw delivers exceptional engineering value in plastic fastening applications where reliability and material integrity are critical. The 18-8 stainless steel construction provides superior corrosion resistance for electronics, automotive components, and outdoor equipment exposed to moisture or chemicals. The innovative Tri-Lobe shank design and thread forming capability eliminate the need for pre-tapped holes, reducing assembly time while creating strong, permanent threads in thermoplastics and other plastic materials. The Torx Plus IP6 drive system ensures maximum torque transfer without stripping, significantly reducing installation failures and production downtime. This combination of precision engineering and material excellence solves common challenges in plastic assembly, including thread stripping, material cracking, and corrosion-induced failure.

Specification Summary & Compliance

This metric tapping screw features precise M1.91 diameter with 0.79mm thread pitch and 5mm length, manufactured to exacting dimensional standards for consistent performance. The TRS (Thread Rolling Screw) design with Tri-Lobe cross-section and blunt tip is engineered specifically for thread forming applications in plastics. The screw complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in consumer products and industrial applications. Designed for use with No. 51 drill bit (0.067" diameter), this fastener provides reliable performance in automated assembly systems requiring high precision and repeatability.