S-99397A122 Length 4 mm Tapping Screws

Key Features & Benefits at a Glance

• Superior torque transmission and reduced cam-out with the Torx Plus IP5 drive, ensuring reliable fastening in tight spaces and minimizing tool wear.
• Excellent corrosion resistance provided by the zinc-plated steel material, extending the screw's lifespan in various industrial environments.
• Secure, vibration-resistant fastening in plastics due to the TRS thread forming design and tri-lobe shank, which create strong threads without pre-tapping.
• Enhanced driving efficiency and precision with the fully threaded, 0.6mm pitch design, allowing for consistent installation and high holding power.
• Broad compatibility with standard tools using the T5 drive size and pan head style, facilitating easy integration into existing assembly processes.
• Compliance with strict environmental regulations including RoHS 3 and REACH, ensuring safe use in global markets and sensitive applications.
• Optimized for plastic materials with a blunt tip and right-hand thread, reducing the risk of material cracking and ensuring smooth, reliable thread formation.

Professional Applications & Engineering Value

These M1.59 x 4mm zinc-plated steel tapping screws are engineered to address common challenges in plastic assembly, such as strip-out and material stress. The TRS thread forming design and tri-lobe shank displace plastic material to create durable, high-retention threads without chips, ideal for applications in electronics, automotive components, and consumer goods. The Torx Plus IP5 drive offers superior torque control, minimizing the risk of head damage and ensuring consistent clamping force in precision plastic applications. Combined with a fully threaded 0.6mm pitch and corrosion-resistant zinc-plated finish, these screws provide long-term reliability and reduce assembly time, making them a valuable choice for engineers seeking efficient, compliant fastening solutions.

Specification Summary & Compliance

This M1.59 x 4mm tapping screw features a fully threaded design with an approximate 0.6mm pitch and right-hand thread, conforming to standard metric dimensions for precision fit. The TRS thread forming type and tri-lobe shank ensure optimal performance in plastic materials, with a recommended No. 54 drill bit (0.055" diameter) for preparation. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), affirming adherence to environmental and safety standards for industrial use.