S-97188A325 Length 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and outdoor applications.
• Excellent thread-forming capability with Type A/AB design creates secure, permanent threads in sheet metal without pre-tapping, reducing assembly time.
• Maximum material compatibility with a maximum drilling thickness of 0.025", ensuring reliable performance in standard sheet metal work.
• Enhanced drive stability from the square drive (No. 2) and pan head design, providing superior torque transmission and reduced cam-out risk.
• Full-length threading offers consistent holding power along the entire 1-1/4" length, improving fastener retention in various material thicknesses.
• Compliance with global regulations including RoHS 3 and REACH, ensuring safe use in regulated industries and international markets.
• Precision-engineered dimensions with a pointed tip for easy starting and a standardized pan head for uniform seating and professional finish.

Professional Applications & Engineering Value

These 316 stainless steel sheet metal tapping screws are engineered to address common challenges in metal fabrication, such as galvanic corrosion and thread stripping. The thread forming technology (Type A/AB) displaces material to create strong, load-bearing threads without chips, eliminating the need for separate tapping operations and reducing assembly costs. The fully threaded design and right-hand thread direction ensure uniform stress distribution and reliable fastening in dynamic or vibrating environments. With a maximum drilling thickness of 0.025" and compatibility with a No. 29 drill bit, these screws provide precise, repeatable performance in HVAC, automotive, and electronics enclosures, where corrosion resistance and regulatory compliance are critical for long-term durability.

Specification Summary & Compliance

This product adheres to standard inch measurements with a thread diameter of 0.164" and 15 threads per inch, ensuring precise fit in pre-drilled holes. The thread forming tapping method and fully threaded shank meet industry expectations for high-strength fastening in sheet metal. Compliance is confirmed with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing the absence of restricted hazardous substances and supporting sustainable manufacturing practices.