S-90086A682 12-24 x 1/2" ASME B18.6.3, SAE J933 Tapping Screws

Key Features & Benefits at a Glance

• Superior material strength with black-oxide steel construction providing excellent corrosion resistance and durability in demanding industrial environments
• Self-tapping efficiency with Type F thread cutting design that creates precise mating threads in various materials without pre-tapping
• Wide material compatibility engineered specifically for aluminum, brass, cast iron, and sheet metal applications
• Optimized drive performance featuring No. 3 Phillips drive for secure tool engagement and reduced cam-out during installation
• Enhanced flush mounting with standard 82° countersink angle and flat head profile for smooth surface finishes
• Maximum holding power through fully threaded UNC coarse thread design ensuring superior pull-out resistance
• Reliable dimensional precision with Class 2A thread tolerances for consistent performance across production runs

Professional Applications & Engineering Value

These 12-24 UNC thread cutting tapping screws deliver exceptional engineering value by solving critical fastening challenges in metal fabrication and assembly operations. The black-oxide steel construction provides superior corrosion protection while maintaining high tensile strength, making these F type tapping screws ideal for demanding applications in aluminum extrusions, brass fittings, cast iron components, and sheet metal enclosures. The coarse UNC thread pattern combined with the thread cutting design eliminates the need for separate tapping operations, significantly reducing installation time and labor costs. The 82° countersink angle ensures flush mounting in standard chamfered holes, while the fully threaded configuration provides uniform stress distribution along the entire fastener length, preventing material deformation and ensuring long-term joint integrity in vibration-prone environments.

Specification Summary & Compliance

These industrial-grade fasteners feature precise 12-24 UNC coarse threads with Class 2A tolerance standards, ensuring consistent threading performance. The screws maintain strict compliance with ASME B18.6.3 specifications (SAE J933) for dimensional accuracy and mechanical properties. Environmental and safety standards are met through RoHS 3 (2015/863/EU) compliance, confirming the absence of restricted hazardous substances. The manufacturing process adheres to industry standards for thread cutting screw production, delivering reliable performance in commercial and industrial applications where material compatibility and regulatory compliance are critical requirements.