S-91715A128 8-32 x 1" ASME B18.6.3, SAE J933 Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black zinc-plated steel construction, ensuring long-term durability in harsh industrial environments
• Self-tapping efficiency with Type F thread cutting design that eliminates the need for pre-tapped holes, reducing installation time and labor costs
• Enhanced driving stability through No. 2 Phillips drive system, preventing cam-out and ensuring secure fastening in high-torque applications
• Maximum material engagement with fully threaded 8-32 UNC coarse thread profile, providing superior pull-out resistance in aluminum, brass, and cast iron
• Optimized thread formation with recommended No. 26 drill bit size, ensuring precise fit and preventing material damage during installation
• Broad material compatibility designed specifically for sheet metal, aluminum, brass, and cast iron applications across multiple industries
• Regulatory compliance assurance meeting ASME B18.6.3 specifications and RoHS 3 standards for quality and environmental responsibility

Professional Applications & Engineering Value

These 8-32 UNC coarse thread tapping screws deliver exceptional engineering value by solving critical fastening challenges in sheet metal fabrication, aluminum enclosures, and cast iron components. The black zinc-plated steel construction provides superior corrosion protection while maintaining high tensile strength. The Type F thread cutting design with blunt tip ensures clean thread formation without material splitting, particularly valuable in aluminum and brass applications where material integrity is paramount. The coarse UNC thread profile combined with full threading delivers maximum holding power in soft metals and thin materials, preventing stripping and maintaining joint integrity under vibration and thermal cycling. These self-tapping screws eliminate the need for separate tapping operations, significantly reducing assembly time in high-volume manufacturing environments while ensuring consistent performance across production runs.

Specification Summary & Compliance

These tapping screws feature precise 8-32 UNC coarse threads with standard Class 2A thread tolerances, 1" length, and 0.164" thread diameter. Manufactured to meet ASME B18.6.3 specifications (SAE J933) for dimensional accuracy and performance reliability. The black zinc-plated steel construction complies with RoHS 3 (2015/863/EU) environmental standards, ensuring they contain no restricted hazardous substances. The Type F thread cutting design is optimized for use with No. 26 drill bit (0.147" diameter) for proper hole preparation in various metal substrates.