S-90087A861 8-32 x 2 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 harsh industrial environments
• Excellent material compatibility with UNC coarse threading designed for reliable performance in aluminum, brass, cast iron, and sheet metal
• Enhanced driving efficiency with No. 2 Phillips drive providing secure tool engagement and reduced cam-out risk
• Optimized thread cutting performance with Type F tapping design that creates strong, permanent threads without pre-tapping
• Full-length threading ensures maximum grip strength and uniform load distribution across the entire fastener length
• Industry-standard compliance meeting ASME B18.6.3 specifications for consistent quality and reliable mechanical performance
• Versatile 2-1/2" length accommodates various material thicknesses while maintaining structural integrity

Professional Applications & Engineering Value

These 8-32 zinc-plated steel tapping screws deliver exceptional engineering value in demanding metal fabrication and assembly applications. The Type F thread cutting design with UNC coarse threading eliminates the need for pre-tapped holes, significantly reducing installation time and labor costs while creating durable, permanent threads in aluminum, brass, cast iron, and sheet metal components. The zinc-plated steel construction provides reliable corrosion protection, extending service life in industrial environments where moisture and chemical exposure are concerns. The combination of No. 2 Phillips drive and rounded pan head profile ensures secure tool engagement and flush mounting, making these self-tapping screws ideal for electrical enclosures, machinery assembly, and metal framework applications where vibration resistance and long-term reliability are critical.

Specification Summary & Compliance

These tapping screws feature precision UNC 8-32 coarse threads with Class 2A thread tolerances and full threading along the 2-1/2" length. Manufactured to meet ASME B18.6.3 specifications and SAE J933 standards, these fasteners ensure consistent dimensional accuracy and mechanical performance. The zinc-plated steel construction complies with industry standards for corrosion protection, while the Type F thread cutting design is engineered for optimal performance in various metal substrates without requiring pre-tapped holes.