S-90063A194 Length 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
• Enhanced torque transmission through external hex/slotted drive design for secure installation and removal
• Excellent material displacement with thread forming tapping method creating strong, vibration-resistant threads in sheet metal
• Integrated flange design eliminates need for separate washers while providing increased bearing surface area
• Precision compatibility with No. 29 drill bits (0.136" diameter) for optimal thread engagement in 0.05" maximum thickness materials
• Secure locking performance through serrated underside that prevents loosening under vibration
• Full threading ensures maximum grip length and holding power throughout the entire fastener length

Professional Applications & Engineering Value

These zinc-plated steel tapping screws deliver exceptional performance in sheet metal assembly applications where vibration resistance and corrosion protection are critical. The thread forming design displaces material rather than removing it, creating stronger threads that won't strip under stress. The combination of external hex drive and flanged head provides superior clamping force while eliminating the need for additional washers, streamlining your assembly process. The serrated locking feature beneath the head ensures maintained tension in high-vibration environments, making these No. 8-15 thread fasteners ideal for HVAC systems, electronic enclosures, automotive components, and industrial equipment where reliable fastening is non-negotiable.

Specification Summary & Compliance

This flanged hex head tapping screw features a No. 8 screw size with 0.164" thread diameter and 15 threads per inch in right-hand direction. The fastener meets standard inch system measurements with precise dimensional tolerances for consistent performance. Manufactured from high-quality steel with zinc plating for corrosion protection, these screws are designed for use with No. 29 drill bits (0.136" diameter) in materials up to 0.05" thickness. The fully threaded, pointed tip design ensures easy starting and proper thread formation in accordance with industry standards for sheet metal fastening applications.