S-90066A327 Length 5" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
• Enhanced vibration resistance through integrated steel/rubber washer that maintains clamping force under dynamic loads
• Efficient installation with 3/8" external hex head design allowing high-torque application using standard tools
• Optimized thread engagement with thread forming design that creates strong, permanent threads in sheet metal without chip removal
• Reliable fastening performance with A/AB tapping screw specification ensuring consistent thread formation and holding power
• Precision engineering with 0.242" thread diameter and 10 threads per inch for accurate fit and superior pull-out resistance
• Versatile partial threading allowing unthreaded shank section for enhanced shear strength in structural applications

Professional Applications & Engineering Value

These No. 14 zinc-plated steel tapping screws deliver exceptional value in sheet metal applications where vibration resistance and corrosion protection are critical. The thread forming design eliminates the need for pre-tapped holes, creating strong, permanent threads that won't loosen under stress. The integrated steel/rubber washer provides superior sealing and maintains clamping force, preventing loosening in high-vibration environments common to industrial machinery, HVAC systems, and metal fabrication. The external hex drive enables high-torque installation without stripping, while the partial threading configuration offers optimal balance between thread engagement and shank strength for demanding structural connections.

Specification Summary & Compliance

Manufactured to A/AB tapping screw standards with precise 0.242" thread diameter and 10 threads per inch accuracy. Features Class 2A thread tolerances for consistent performance and proper fit. The zinc-plated steel construction meets industry corrosion resistance requirements, while the flat washer configuration complies with standard fastening specifications. These thread forming screws are engineered for reliable performance in sheet metal applications up to 0.025" thickness with recommended 5.5 mm drill bit preparation.