S-90096A377 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, extending service life in demanding industrial environments
• Effortless installation through thread-cutting design that creates precise mating threads in aluminum, brass, cast iron and sheet metal
• Enhanced driving stability with external hex/slotted drive system providing superior torque transmission and slip resistance
• Maximum material engagement through fully threaded UNC coarse spacing design ensuring secure fastening across the entire length
• Distributed load bearing with flanged construction that increases surface contact and prevents pull-through in thin materials
• Optimized compatibility with No. 26 drill bit size (0.147") for precise hole preparation and reliable thread formation
• Simplified inventory management with standardized 8-32 thread size and 1-1/2" length meeting common industrial requirements

Professional Applications & Engineering Value

These zinc-plated steel tapping screws deliver exceptional performance in aluminum, brass, cast iron, and sheet metal applications where reliable thread formation is critical. The thread cutting design eliminates the need for separate tapping operations, significantly reducing assembly time and labor costs in high-volume manufacturing. The UNC coarse thread configuration provides excellent pull-out resistance in softer materials, while the flanged hex head distributes clamping force evenly to prevent material deformation. Engineered for industrial tapping applications, these screws maintain consistent performance across production runs, ensuring reliable fastening in automotive components, electrical enclosures, machinery assemblies, and metal fabrication projects where vibration resistance and long-term integrity are paramount.

Specification Summary & Compliance

Manufactured to ASME B18.6.3 specifications (SAE J933) with UNC coarse thread standards ensuring dimensional accuracy and interchangeability. The 8-32 thread size features precise Class 2A thread tolerances for reliable engagement, while the 1-1/2" length provides consistent fastening depth. Compliant with RoHS 3 (2015/863/EU) regulations for environmental safety, these screws are engineered for use with No. 26 drill bits (0.147" diameter) to achieve optimal thread cutting performance in specified materials.