S-94059A303 Length 2 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments
• Enhanced sealing performance through integrated steel/rubber flat washer, preventing moisture ingress and improving joint integrity
• Efficient installation with external hex drive and drilling tip design, enabling direct penetration into materials without pre-drilling
• Maximum thread engagement with fully threaded shank and thread forming design, providing superior pull-out resistance in steel and sheet metal
• Optimized drilling capability with No. 3 drill tip, capable of penetrating up to 0.187" thickness for versatile application range
• Secure fastening with right-hand thread direction and 14 threads per inch, ensuring reliable clamping force in vibration-prone applications
• Environmental compliance meeting RoHS 3 standards, making them suitable for regulated industries and sustainable manufacturing

Professional Applications & Engineering Value

These No. 12 zinc-plated steel tapping screws deliver exceptional engineering value in steel and sheet metal applications where vibration resistance and environmental sealing are critical. The thread forming design creates stronger, more durable threads in parent material compared to cutting screws, eliminating chip formation issues. The combination of steel/rubber flat washer and fully threaded shank provides dual sealing action - both at the bearing surface and along the thread path. The integrated drilling tip with 0.187" maximum penetration capability streamlines installation processes, reducing labor time and eliminating separate drilling operations. These BSD tapping screws are particularly valuable in HVAC systems, electrical enclosures, and metal fabrication where reliable, sealed fastening solutions are essential for long-term performance.

Specification Summary & Compliance

These No. 12 tapping screws feature precise inch system dimensions with 0.216" thread diameter and 2-1/2" length. The thread forming tapping method follows industry standards for BSD screw types, while the external hex drive provides secure torque transmission. Manufacturing complies with RoHS 3 (2015/863/EU) environmental regulations, ensuring restriction of hazardous substances. The combination of zinc-plated steel construction and steel/rubber washer materials delivers reliable performance in industrial fastening applications requiring corrosion resistance and sealing capabilities.