S-90198A198 Length 1 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction for long-lasting performance in harsh environments.
• Efficient thread forming design creates strong, permanent threads in sheet metal without pre-tapping, reducing installation time.
• Optimal flush finishing with a standard 82° flat head profile that sits neatly countersunk for smooth, snag-free surfaces.
• Full-length threading ensures maximum grip and holding power along the entire 1-1/2" length for secure fastening.
• Reliable drive engagement with a No. 2 Phillips drive for common tool compatibility and reduced cam-out risk.
• Precision fit with a No. 6 screw diameter and 18 threads per inch, designed for use with a No. 32 drill bit for accurate hole preparation.
• Environmental and regulatory compliance meeting RoHS 3 and REACH standards for safe, sustainable industrial use.

Professional Applications & Engineering Value

These 316 stainless steel Phillips flat head tapping screws are engineered specifically for sheet metal applications, where corrosion resistance and structural integrity are paramount. The thread forming (A/AB type) design displaces material to create robust, strip-resistant threads, eliminating the need for tapped holes and speeding up assembly in manufacturing lines. The fully threaded shank and pointed tip ensure easy starting and consistent engagement, even in thin-gauge metals up to 0.025" thick. With a standard 82° countersink angle, these screws provide a flush finish that minimizes protrusion in HVAC, electronics enclosures, and automotive panels, reducing the risk of damage or injury. The combination of 316 stainless steel material and RoHS/REACH compliance makes them ideal for demanding environments, including marine, chemical processing, and outdoor equipment, where durability and regulatory adherence are critical for long-term reliability.

Specification Summary & Compliance

This No. 6 x 1-1/2" tapping screw features a 0.138" thread diameter with approximately 18 threads per inch, conforming to standard inch-series thread forming (A/AB type) specifications for right-hand threading. The flat head design includes a standard profile with precise dimensional control for consistent countersinking. Manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring the absence of restricted substances for industrial safety and environmental responsibility.