S-90086A194 8-32 x 1/2" ASME B18.6.3, SAE J933 Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ensuring long-lasting performance in harsh industrial environments.
• Effortless installation through thread cutting design, eliminating the need for pre-tapped holes in materials like aluminum and brass.
• Enhanced driving efficiency with Phillips No. 2 drive, providing secure tool engagement and reducing cam-out risks during assembly.
• Optimal material compatibility for use in aluminum, brass, cast iron, and sheet metal, offering versatile fastening solutions.
• Maximum holding power from fully threaded UNC coarse spacing, delivering reliable grip and vibration resistance in dynamic applications.
• Precise flush mounting with standard 82° flat head profile, allowing seamless countersinking for a clean, professional finish.
• Regulatory peace of mind by complying with ASME B18.6.3 standards and RoHS 3 directives, ensuring quality and environmental safety.

Professional Applications & Engineering Value

These 8-32 UNC tapping screws are engineered to address common industrial fastening challenges in aluminum, brass, cast iron, and sheet metal assemblies. The thread cutting (Type F) design eliminates the need for separate tapping operations, reducing installation time and labor costs while minimizing thread stripping risks. Made from zinc-plated steel, they offer excellent corrosion protection in demanding environments, from HVAC systems to machinery enclosures. The coarse UNC thread and full threading ensure rapid insertion and superior pull-out resistance, even in thin materials. With a Phillips No. 2 drive and 82° countersink angle, these screws provide reliable, flush fastening for applications requiring aesthetic finishes or streamlined surfaces, making them ideal for OEM production and maintenance repairs.

Specification Summary & Compliance

This product adheres to UNC coarse thread standards with precise dimensional accuracy, including a No. 8 screw size, 1/2" length, and 0.164" thread diameter. Manufacturing and performance comply with ASME B18.6.3 specifications, ensuring consistent quality and interoperability. Environmental and safety requirements are met through RoHS 3 (2015/863/EU) compliance, confirming the absence of restricted hazardous substances. Designed for use with a No. 26 drill bit (0.147" diameter), these screws support efficient pre-drilling in applicable materials.