S-93406A254 Length 2 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction for long-lasting performance in harsh environments
• Enhanced load distribution thanks to the wide truss head design that reduces surface pressure and prevents material damage
• Secure thread-forming installation that creates strong, permanent threads in sheet metal without requiring pre-tapped holes
• Optimized for sheet metal applications with precise No. 21 drill bit compatibility and maximum 0.025" drilling thickness capability
• Excellent driving control provided by the Phillips No. 2 drive style that minimizes cam-out during installation
• Full-length threading ensures maximum grip and holding power across the entire fastener length
• Environmental compliance meeting RoHS 3 and REACH standards for safe, regulated industrial use

Professional Applications & Engineering Value

These No. 10-12 tapping screws deliver exceptional engineering value for sheet metal fastening applications where vibration resistance and permanent installation are critical. The 18-8 Stainless Steel composition provides reliable corrosion resistance in demanding environments, while the thread forming design creates stronger, more durable connections than conventional screws by displacing material rather than removing it. The wide truss head offers superior clamping force distribution, preventing pull-through in thin materials and reducing stress concentration points. With fully threaded construction and right-hand threading, these A/AB tapping screws ensure consistent performance across HVAC systems, electronic enclosures, automotive components, and industrial equipment where reliable sheet metal fastening is essential.

Specification Summary & Compliance

This No. 10-12 x 2-1/2" Phillips Truss Head Tapping Screw features precise dimensional specifications including 0.19" thread diameter, 12 threads per inch, and Class 2A thread tolerances. Manufactured to A/AB tapping screw standards with thread forming method for optimal performance in sheet metal applications. The screw requires No. 21 drill bit (0.159" diameter) for proper installation in materials up to 0.025" thickness. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.