S-93406A409 Length 2 3/4" 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.
• Enhanced holding power and vibration resistance through thread forming technology, which creates strong, permanent threads in sheet metal without chips.
• Wide truss head design provides a larger bearing surface for improved load distribution and reduced risk of pull-through in thin materials.
• Efficient No. 2 Phillips drive allows for quick installation with common tools, minimizing assembly time and labor costs.
• Fully threaded shank ensures maximum grip along the entire length, offering consistent fastening strength in sheet metal applications.
• Precise compatibility with a No. 21 drill bit (0.159" diameter), facilitating accurate pilot holes for optimal thread engagement and reduced material stress.
• Compliance with RoHS 3 and REACH regulations guarantees environmental safety and meets global standards for industrial use.

Professional Applications & Engineering Value

This No. 10 x 2-3/4" 18-8 Stainless Steel Phillips Truss Head Tapping Screw is engineered to address common challenges in sheet metal fastening, such as material fatigue and corrosion. Its thread forming design eliminates the need for pre-tapped holes, reducing installation steps and preventing loose connections in dynamic environments. The rounded truss head distributes clamping force evenly, minimizing surface damage and enhancing seal integrity in assemblies like HVAC ducts, electronic enclosures, and automotive panels. Made from durable 18-8 stainless steel, it resists rust and chemicals, ensuring longevity in demanding conditions while the fully threaded profile and No. 2 Phillips drive streamline maintenance and repairs, saving time and costs in industrial operations.

Specification Summary & Compliance

This screw features a thread diameter of 0.19" with approximately 12 threads per inch, adhering to standard tapping screw dimensions for consistent performance. It is designed for use with a No. 21 drill bit (0.159" diameter) and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances. The thread forming method and A/AB tapping screw type provide reliable fastening in materials up to 0.025" thickness, meeting industry specifications for precision and safety in sheet metal applications.