S-90054A197 Length 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Corrosion-resistant zinc plating ensures long-lasting durability in harsh industrial environments, reducing replacement costs.
• Thread forming design creates strong, secure threads in sheet metal without pre-tapping, saving time and labor in assembly.
• External hex/slotted drive offers versatile tool compatibility for efficient installation with standard wrenches or screwdrivers.
• Flanged head design provides a larger bearing surface to prevent pull-through and distribute clamping force evenly.
• Fully threaded shank maximizes grip length and holding power in materials up to 0.025" thickness.
• Precise No. 8 size with 15 threads per inch delivers reliable engagement and vibration resistance in sheet metal applications.
• RoHS 3 and REACH compliance guarantees environmental safety and regulatory adherence for global supply chains.

Professional Applications & Engineering Value

These No. 8 zinc-plated steel tapping screws are engineered to address common challenges in sheet metal assembly, where material thinness and vibration can compromise joint integrity. The thread forming technology displaces material rather than cutting it, producing stronger threads with reduced risk of stripping in delicate sheets. The flanged hex head combines easy drive engagement with enhanced load distribution, minimizing stress concentration around fastener holes. Ideal for HVAC, electronics enclosures, and automotive panels, these fully threaded screws with a pointed tip ensure quick starts and consistent performance, while the zinc plating provides a sacrificial layer against corrosion in humid or outdoor settings. This design eliminates the need for separate washers and streamlines high-volume production lines.

Specification Summary & Compliance

This No. 8 tapping screw features a 1/4" hex head, 3/4" length, and fully threaded right-hand thread with a diameter of 0.164" and approximately 15 threads per inch. Manufactured as an A/AB type thread forming screw for use with a No. 29 drill bit (0.136" diameter), it is designed for sheet metal up to 0.025" maximum drilling thickness. The product conforms to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring compliance with restricted substance directives for industrial and international markets.