S-90065A117 Length 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments.
• Efficient thread forming design creates strong, permanent threads in sheet metal without pre-tapping, reducing installation time and labor costs.
• Complete flush mounting with standard flat head profile and 82° countersink angle for smooth, professional finishes in sheet metal assemblies.
• Maximum driving torque transfer through No. 1 Phillips drive, preventing cam-out and ensuring secure fastening in high-vibration applications.
• Full threading along the entire 1-1/4" length provides consistent holding power and allows for adjustable positioning in assemblies.
• Optimized for 0.025" maximum drilling thickness in sheet metal applications, delivering reliable performance in standard gauge materials.
• Environmental compliance assurance with RoHS 3 and REACH regulations, meeting international standards for hazardous substance restrictions.

Professional Applications & Engineering Value

These No. 4-24 thread forming screws are specifically engineered to address common challenges in sheet metal fabrication and assembly. The 18-8 stainless steel composition provides exceptional corrosion resistance, making these Phillips flat head tapping screws ideal for applications exposed to moisture, chemicals, or outdoor elements. The thread forming design (Type A) eliminates the need for separate tapping operations, as the screws create their own precisely formed threads in sheet metal up to 0.025" thickness. This self-tapping capability significantly reduces assembly time while providing superior pull-out resistance compared to conventional machine screws. The 82° countersink angle and standard flat head profile ensure flush mounting, preventing snagging and creating clean, professional finishes in HVAC systems, electronic enclosures, automotive components, and industrial equipment where sheet metal fasteners must withstand vibration and mechanical stress.

Specification Summary & Compliance

These precision tapping screws feature a No. 4-24 thread size with 0.112" thread diameter and 24 threads per inch, manufactured to standard thread forming specifications. The fully threaded 1-1/4" length provides maximum engagement in sheet metal applications. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring adherence to international environmental standards for hazardous substance restrictions in industrial components.