S-90086A192 8-32 x 3/8" 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
• Excellent material compatibility with thread-cutting design that creates strong, permanent threads in aluminum, brass, cast iron, and sheet metal
• Enhanced driving efficiency with No. 2 Phillips drive providing secure tool engagement and reduced cam-out during installation
• Optimal flush mounting with undercut flat head design that sits perfectly countersunk at 82° for smooth surface finishes
• Maximum holding power through fully threaded coarse UNC spacing that ensures superior grip in various base materials
• Simplified installation process with precise No. 26 drill bit specification for accurate hole preparation and reduced assembly time
• Reliable performance assurance meeting ASME B18.6.3 standards and RoHS 3 compliance for quality and environmental responsibility

Professional Applications & Engineering Value

These 8-32 UNC zinc-plated steel tapping screws deliver exceptional engineering value by solving critical fastening challenges in metalworking applications. The thread-cutting F-type design eliminates the need for pre-tapped holes, creating precise internal threads directly in aluminum, brass, cast iron, and sheet metal substrates. This fully threaded coarse spacing configuration provides maximum thread engagement and superior pull-out resistance, while the undercut flat head with 82° countersink angle ensures flush mounting without protrusion. The zinc-plated surface treatment offers reliable corrosion protection, making these No. 2 Phillips drive screws ideal for HVAC systems, electrical enclosures, machinery assembly, and automotive components where vibration resistance and long-term reliability are paramount.

Specification Summary & Compliance

These tapping screws feature precise 8-32 UNC coarse thread with Class 2A tolerance dimensions, ensuring consistent performance across industrial applications. The manufacturing process strictly adheres to ASME B18.6.3 specifications (SAE J933) for dimensional accuracy and mechanical properties. Environmental compliance is confirmed through RoHS 3 (2015/863/EU) certification, guaranteeing restricted substance-free manufacturing. The F-type thread cutting design, right-hand thread direction, and blunt tip configuration provide optimal performance when used with the specified No. 26 drill bit (0.147" diameter) for hole preparation in various metal substrates.