S-90065A298 Length 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring longevity in harsh industrial environments.
• Efficient thread forming design creates strong, permanent threads in sheet metal without pre-tapping, reducing installation time and tooling costs.
• Full threading along the 1-1/4" length provides maximum grip and holding power across the entire material thickness.
• Precision Phillips flat head with standard 82° countersink angle sits flush for smooth, snag-free surfaces in metal assemblies.
• Reliable compliance with RoHS 3 and REACH regulations, making them safe for various industrial applications without hazardous substances.
• Optimized for 0.1875" drill bits and 0.025" maximum drilling thickness, ensuring accurate fit and reduced material stress in sheet metal.
• Right-hand threaded with 11 TPI offers consistent, secure fastening performance in automated or manual assembly processes.

Professional Applications & Engineering Value

These No. 12 Phillips flat head tapping screws are engineered specifically for sheet metal applications, where vibration resistance and material integrity are critical. The 18-8 stainless steel composition provides excellent strength and corrosion resistance, ideal for outdoor equipment, HVAC systems, and electronic enclosures exposed to moisture. The thread forming (Type A) design eliminates the need for separate tapping operations, reducing labor costs and preventing metal shavings in sensitive assemblies. With a 0.216" thread diameter and fully threaded shank, these screws distribute load evenly, minimizing the risk of strip-out in thin-gauge metals. The flat head profile ensures a flush finish, enhancing both safety and aesthetics in finished products while maintaining structural reliability under dynamic loads.

Specification Summary & Compliance

This tapping screw features a No. 12 size with 1-1/4" length, 0.216" thread diameter, and 11 threads per inch in a right-hand direction. It conforms to standard inch measurements with a flat head, Phillips No. 3 drive, and pointed tip for easy insertion. The screw is designed for use with 3/16" (0.1875") drill bits and supports a maximum drilling thickness of 0.025" with an 82° countersink angle. Manufacturing and material compliance include RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring adherence to environmental and safety standards for industrial fasteners.