S-90086A654 3/8"-16 x 1" ASME B18.6.3, SAE J933 Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
• Exceptional thread-cutting performance with Type F tapping design that creates precise mating threads in various materials
• Optimized installation efficiency through coarse UNC threading and fully threaded design for faster assembly
• Secure flush mounting with standard 82° flat head profile that sits perfectly countersunk in prepared surfaces
• Reliable driving torque transmission via No. 4 Phillips drive that minimizes cam-out during installation
• Versatile material compatibility specifically engineered for aluminum, brass, cast iron, and sheet metal applications
• Industry-standard compliance meeting ASME B18.6.3 specifications and RoHS 3 environmental regulations

Professional Applications & Engineering Value

These 3/8"-16 UNC tapping screws deliver exceptional engineering value in metal fabrication and assembly operations. The zinc-plated steel construction provides essential corrosion protection while maintaining high tensile strength for durable fastening solutions. The Type F thread cutting design with coarse spacing eliminates the need for pre-tapped holes, significantly reducing installation time and labor costs in production environments. The 82° countersink angle ensures proper seating in prepared surfaces, preventing protrusion issues in finished assemblies. Particularly effective in aluminum, brass, cast iron, and sheet metal applications, these screws provide reliable performance where vibration resistance and material integrity are critical. The Phillips flat head configuration offers both aesthetic appeal and functional benefits in automotive, construction, and industrial equipment manufacturing.

Specification Summary & Compliance

Manufactured to precise dimensional standards with UNC coarse thread profile and Class 2A tolerance for consistent performance. The 1" length and 0.375" thread diameter provide optimal engagement depth for secure fastening. Compliant with ASME B18.6.3 specifications SAE J933, ensuring mechanical properties and dimensional accuracy. Meets RoHS 3 (2015/863/EU) environmental compliance standards. Installation requires T drill bit (0.358" diameter) for proper hole preparation and optimal thread engagement in base materials.