S-90054A208 Length 2 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments
• Enhanced load distribution through 0.348" flange diameter, preventing material pull-through and maintaining joint integrity
• Optimal thread engagement with fully threaded design and 15 threads per inch, ensuring maximum holding power in sheet metal applications
• Versatile installation options with external hex/slotted drive combination, accommodating both power and manual tool applications
• Reliable thread forming capability with A/AB type design, creating strong mating threads without chip removal in materials up to 0.025" thickness
• Precise dimensional compatibility with No. 29 drill bit (0.136" diameter), ensuring proper fit and reduced installation effort
• Comprehensive regulatory compliance meeting RoHS 3 and REACH standards, suitable for global industrial supply chains

Professional Applications & Engineering Value

These No. 8-15 thread forming tapping screws deliver exceptional performance in sheet metal fastening applications where vibration resistance and permanent assembly are critical. The zinc-plated steel construction provides essential corrosion protection for industrial environments, while the flanged hex head design eliminates the need for separate washers, reducing installation time and component count. The thread forming action creates precise mating threads in sheet metal up to 0.025" thickness, eliminating chips and ensuring secure, vibration-resistant joints. With right-hand threading and external hex/slotted drive, these fasteners accommodate both high-volume production and maintenance applications, making them ideal for HVAC systems, electrical enclosures, and metal fabrication projects requiring reliable, long-term fastening solutions.

Specification Summary & Compliance

This flanged tapping screw features No. 8 size with 0.164" thread diameter and 2-1/2" length, manufactured to standard A/AB tapping screw specifications with fully threaded design. The fastener demonstrates precise dimensional control with recommended No. 29 drill bit compatibility (0.136" diameter) for optimal thread formation. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and material safety for industrial applications worldwide.