S-90087A857 8-32 x 1 1/2" 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
• Efficient self-tapping installation with Type F thread cutting design that eliminates the need for pre-tapped holes
• Wide material compatibility specifically engineered for aluminum, brass, cast iron, and sheet metal applications
• Optimized drive performance with Phillips No. 2 drive style providing secure torque transfer and reduced cam-out
• Reliable thread engagement through full UNC coarse threading ensuring strong holding power in various materials
• Enhanced fastener stability with standard pan head design distributing clamp load evenly across fastened surfaces
• Industry-standard compliance meeting ASME B18.6.3 and SAE J933 specifications for consistent quality and performance

Professional Applications & Engineering Value

These zinc-plated steel tapping screws deliver exceptional engineering value by solving critical fastening challenges in metalworking and manufacturing applications. The Type F thread cutting design with UNC coarse threading creates precise mating threads in aluminum, brass, cast iron, and sheet metal without requiring pre-tapped holes, significantly reducing assembly time and labor costs. The Phillips No. 2 drive ensures reliable installation with standard tools while minimizing stripping risks. The combination of zinc plating and steel construction provides optimal corrosion resistance for industrial environments, making these self-tapping screws ideal for HVAC systems, electrical enclosures, machinery assembly, and metal fabrication projects where durability and installation efficiency are paramount.

Specification Summary & Compliance

This 8-32 x 1-1/2" tapping screw features precise UNC coarse threads with standard Class 2A tolerances, ensuring consistent performance across applications. The fastener maintains full threading along its entire 1-1/2" length with a No. 8 screw size and 0.164" thread diameter. Manufacturing and performance comply with ASME B18.6.3 and SAE J933 specifications, guaranteeing industrial-grade reliability and interchangeability. The product is designed for use with No. 20 drill bits (0.147" diameter) and features right-hand thread direction with blunt tip configuration for controlled thread cutting action.