S-93380A400 12-24 x 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior material protection with zinc-plated steel construction that resists corrosion in demanding industrial environments
• Efficient thread cutting action with Type F tapping design eliminates the need for pre-tapped holes, reducing installation time and labor costs
• Optimized for multiple materials including aluminum, brass, and sheet metal applications with precise No. 8 drill bit compatibility
• Secure fastening performance through fully threaded 12-24 UNC coarse threads that provide excellent holding power in soft materials
• Flush mounting capability with undercut flat head and 82° countersink angle for smooth, professional-looking finished surfaces
• Reliable drive engagement with No. 3 Phillips drive that minimizes cam-out and ensures consistent torque application
• Environmental compliance assurance meeting RoHS 3 standards for use in regulated industries and global markets

Professional Applications & Engineering Value

These 12-24 UNC thread cutting screws are engineered to solve critical fastening challenges in aluminum, brass, and sheet metal assemblies. The zinc-plated steel construction provides essential corrosion resistance while the Type F tapping method creates precise mating threads during installation, eliminating the need for separate tapping operations. The undercut flat head design with 82° countersink angle ensures flush mounting without protrusion, making these tapping screws ideal for applications where surface clearance is critical. The coarse UNC threads deliver superior pull-out resistance in softer materials, while the No. 3 Phillips drive offers reliable torque transfer for production line efficiency. These features combine to reduce assembly time, minimize component requirements, and enhance the durability of your metal fabrications.

Specification Summary & Compliance

These tapping screws feature precision 12-24 UNC coarse threads with standard Class 2A thread tolerances for consistent performance. The Type F thread cutting design follows established industrial standards for self-tapping fasteners in non-ferrous metals and sheet materials. Manufacturing specifications include 1/2" length, 0.412" head diameter, and fully threaded configuration. Compliance is verified with RoHS 3 (2015/863/EU) regulations, ensuring environmental safety standards are met for global industrial applications. Recommended drill size of No. 8 (0.199" diameter) provides optimal clearance for thread engagement in specified materials.