S-90054A305 Length 2 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
• Superior holding power through integrated flange design that distributes load and prevents pull-through in sheet metal applications
• Efficient installation with external hex drive providing maximum torque transfer and slotted compatibility for versatile tool options
• Eliminates pre-tapping requirements with thread-forming design that creates strong, permanent threads while reducing assembly steps
• Optimal thread engagement with fully threaded 2-1/2" length and pointed tip for easy starting and maximum fastening strength
• Precise fit and compatibility with standardized No. 12 size and 3/16" drill bit specification ensuring consistent performance
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for safe, environmentally responsible manufacturing

Professional Applications & Engineering Value

These No. 12 zinc-plated steel tapping screws deliver exceptional performance in sheet metal applications where vibration resistance and long-term reliability are critical. The thread forming design creates stronger, more durable threads than cutting alternatives by displacing material rather than removing it, resulting in improved fatigue resistance and reduced loosening under dynamic loads. The flanged hex head provides a larger bearing surface that distributes clamping force evenly, preventing damage to thin sheet materials while allowing for higher torque application. With full threading along the 2-1/2" length and right-hand thread direction, these fasteners offer maximum grip range and straightforward installation. The combination of zinc plating and steel construction ensures reliable performance in various industrial environments, making them ideal for HVAC systems, electrical enclosures, automotive components, and machinery assemblies where sheet metal fastening is required.

Specification Summary & Compliance

These tapping screws feature precise dimensional specifications including 0.216" thread diameter, 11 threads per inch, and A/AB tapping screw type classification. The external hex drive with 0.313" head width and 0.194" head height ensures proper tool engagement, while the 0.432" flange diameter provides optimal load distribution. Manufactured to industry standards for thread forming screws, these fasteners are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and workplace safety. The specified 3/16" drill bit size (0.1875" diameter) and 0.025" maximum drilling thickness provide clear installation guidelines for consistent performance in sheet metal applications.