S-90198A770 Length 2 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
• Secure, vibration-resistant fastening in sheet metal due to the thread forming tapping method, which creates strong, clean threads without chips.
• Flush, professional finish enabled by the standard flat head profile and 82° countersink angle, providing a smooth surface and reducing snagging.
• Efficient installation with a No. 3 Phillips drive, offering good torque transfer and compatibility with common industrial drivers.
• Full-length gripping power from being fully threaded, ensuring maximum holding strength along the entire 2-1/2" length in sheet metal assemblies.
• Precision fit and reduced material stress with a pointed tip and specified 0.2165" drill bit size, promoting accurate pilot holes and preventing sheet metal distortion.
• Compliance with global environmental standards, being RoHS 3 and REACH compliant for safe, sustainable use in regulated industries.

Professional Applications & Engineering Value

These No. 14 Phillips flat head tapping screws are engineered to solve common challenges in sheet metal fabrication, such as material cracking and poor thread retention. The thread forming design displaces material rather than cutting it, creating stronger, more durable threads that resist loosening under vibration—a critical advantage in automotive, HVAC, and electronic enclosure assembly. Made from 316 stainless steel, these screws offer superior corrosion resistance against chlorides and industrial chemicals, extending the service life of metal structures. The combination of a flat head with an 82° countersink ensures a secure, flush mount, protecting against snags and providing a clean aesthetic, while the fully threaded shank delivers consistent clamping force. This makes them an indispensable industrial fastener for demanding applications where reliability and longevity are paramount.

Specification Summary & Compliance

This product adheres to standard inch measurements with a thread diameter of 0.242" and approximately 10 threads per inch, classified under Tapping Screw Type A/AB for thread forming applications. Manufacturing and material specifications ensure dimensional accuracy suitable for industrial use. The screws are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming they are free of restricted hazardous substances and safe for various industrial and commercial environments.