S-90077A303 Length 2 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ensuring long-lasting performance in demanding industrial environments
• Versatile installation options through combined Phillips/Slotted drive, allowing use with multiple tools and reducing assembly time
• Efficient thread-forming design that creates strong, permanent threads in sheet metal without pre-tapping, minimizing labor and tooling costs
• Full threading and pointed tip for quick starts and secure fastening across the entire 2-1/2" length, enhancing grip and load distribution
• Optimized for 3/16" sheet metal applications up to 0.025" thickness, providing reliable fastening in thin-material assemblies
• Durable pan head profile with rounded edges for a flush finish and reduced risk of snagging or damage to surrounding components
• Compliance with RoHS 3 and REACH regulations, ensuring safe, environmentally responsible sourcing for global supply chains

Professional Applications & Engineering Value

These No. 12 tapping screws are engineered to address common challenges in sheet metal fastening, where vibration resistance, material integrity, and installation speed are critical. The zinc-plated steel construction provides a protective barrier against rust and corrosion, extending service life in humid or outdoor settings. As thread-forming screws, they displace material to create precise mating threads, eliminating the need for separate tapping operations and reducing the risk of strip-out in thin-gauge metals. The Phillips/Slotted drive offers flexibility for both automated and manual assembly, while the fully threaded design ensures maximum holding power across the entire shank. Ideal for HVAC systems, electrical enclosures, and automotive panels, these screws deliver consistent performance where sheet metal fasteners must withstand dynamic loads and environmental exposure.

Specification Summary & Compliance

This tapping screw features a No. 12 size with 0.216" thread diameter and 11 threads per inch, conforming to standard A/AB tapping screw specifications for right-hand threading. The pan head design includes a 0.425" diameter and 0.151" height, manufactured with precise dimensional tolerances for reliable fit. It is compatible with a 3/16" drill bit (0.1875" diameter) and suitable for materials up to 0.025" thickness. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting stringent environmental and safety standards for industrial use.