S-90190A303 Length 2 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
• Efficient thread forming technology creates strong, permanent threads in sheet metal without chip removal
• Maximum holding power achieved through fully threaded design and 11 TPI precision for secure fastening
• Quick installation with Phillips No. 3 drive that provides reliable torque transfer and reduces tool slippage
• Optimized for sheet metal applications with pointed tip and 0.216" thread diameter for easy penetration and strong engagement
• Pan head design offers excellent bearing surface and low profile for flush mounting in various applications
• Environmental compliance meets RoHS 3 and REACH standards for safe, sustainable industrial use

Professional Applications & Engineering Value

Engineered specifically for sheet metal fabrication, this zinc-plated steel tapping screw solves critical fastening challenges in HVAC systems, electrical enclosures, and metal framing applications. The thread forming technology (Type A/AB) eliminates the need for pre-tapped holes while creating stronger, more reliable threads that resist vibration loosening. With its fully threaded design and precise 11 TPI configuration, this Phillips pan head screw ensures maximum thread engagement throughout the entire 2-1/2" length, providing superior pull-out resistance in thin-gauge materials. The combination of zinc plating for corrosion protection and the efficient Phillips drive system makes this fastener ideal for high-volume assembly operations where durability and installation speed are paramount.

Specification Summary & Compliance

This No. 12 x 2-1/2" tapping screw features a 0.216" thread diameter with 11 threads per inch precision, manufactured to thread forming standards (Type A/AB) for optimal performance in sheet metal applications. The screw requires a 3/16" (0.1875") drill bit size and is compatible with maximum drilling thickness of 0.025". The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors while maintaining consistent quality and reliability standards.