S-90077A201 Length 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ensuring long-term durability in harsh industrial environments.
• Effortless installation thanks to the dual Phillips/Slotted drive, providing flexibility and reducing tool slippage during fastening.
• Strong, reliable thread engagement from the thread-forming tapping method, which creates secure, vibration-resistant connections in sheet metal.
• Full-length threading for maximum grip and holding power across the entire 1-1/4" length, ideal for varying material thicknesses.
• Precision-engineered tip and thread design (No. 8-15 thread with 0.164" diameter) ensures clean, accurate tapping without pre-drilling in materials up to 0.025" thick.
• Wide compatibility with standard No. 29 drill bits, streamlining workflow and reducing setup time in sheet metal fabrication.
• Compliance with global environmental standards including RoHS 3 and REACH, making them safe for use in regulated industries.

Professional Applications & Engineering Value

These zinc-plated steel tapping screws are engineered to address common challenges in sheet metal assembly, such as material splitting and loose fasteners. The thread-forming A/AB type design displaces material rather than cutting it, resulting in stronger threads with reduced risk of stripping. This is particularly valuable in high-vibration environments, where the fully threaded and pointed tip ensures deep penetration and consistent clamping force. By combining a rounded pan head with dual Phillips/Slotted drive, these screws offer versatile installation options, speeding up production while maintaining industrial-grade reliability in HVAC, automotive, and construction applications.

Specification Summary & Compliance

This screw features a No. 8-15 thread with a diameter of 0.164" and length of 1-1/4", adhering to standard inch measurements for precise fit. The thread-forming tapping method and fully threaded shank ensure consistent performance in sheet metal up to 0.025" thickness, compatible with a No. 29 drill bit (0.136" diameter). It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious industrial use without hazardous substances.