S-90485A468 Length 18 mm Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in humid or demanding environments.
• Efficient thread forming in plastic using TRS (Thread Rolling Screw) design, reducing installation torque and preventing material cracking.
• Secure fastening with full threading and 1.79mm pitch, providing maximum grip and pull-out resistance in plastic assemblies.
• Easy installation and flush finish thanks to the Phillips No. 2 drive and standard 90° flat head, minimizing tool slippage and protrusion.
• Blunt tip design for precise positioning and reduced risk of damaging plastic components during insertion.
• Compliance with environmental regulations, meeting RoHS 3 and REACH standards for safe, sustainable use in various industries.
• Optimized for plastic applications with recommended No. 30 drill bit (0.1285"), ensuring proper hole sizing and thread engagement.

Professional Applications & Engineering Value

These M4 x 18mm metric tapping screws are specifically engineered for plastic assembly challenges, where traditional fasteners may cause stress cracking or strip threads. The 18-8 stainless steel material offers excellent strength and rust resistance, ideal for outdoor equipment, electronics enclosures, and automotive components. The TRS (Thread Forming) design with a blunt tip displaces plastic material without cutting, creating strong, vibration-resistant threads that maintain integrity under dynamic loads. Combined with the Phillips flat head and full threading, these screws ensure quick, reliable installations in thermoplastics and other polymers, reducing assembly time and improving product lifespan in industrial settings.

Specification Summary & Compliance

This M4 screw features an 18mm length with fully threaded metric coarse pitch (approx. 1.79mm), flat head with 90° countersink, and Phillips No. 2 drive. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring no restricted substances are used. Designed for use with a No. 30 drill bit (0.1285"), it meets standard thread-forming requirements for plastic materials, providing consistent performance and dimensional accuracy in professional applications.