S-90390A142 10-24 x 5/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior torque transmission with T20 Torx drive design, reducing cam-out and tool wear for reliable installation
• Enhanced corrosion resistance through zinc-plated steel construction, extending service life in demanding industrial environments
• Efficient thread cutting action with Type F tapping screw design, creating precise threads in aluminum, brass, cast iron, and sheet metal without pre-tapping
• Maximum material engagement with fully threaded UNC coarse thread profile, providing exceptional pull-out resistance and vibration resistance
• Flush surface finishing with standard 82° flat head profile, ensuring clean appearance and preventing snagging in assembled products
• Simplified installation process using standard No. 17 drill bit (0.173"), reducing preparation time and tooling requirements
• Environmental compliance assurance with RoHS 3 certification, meeting international regulatory standards for industrial applications

Professional Applications & Engineering Value

These 10-24 thread cutting screws deliver exceptional engineering value in metal fabrication and assembly operations. The zinc-plated steel construction provides reliable corrosion protection while maintaining high tensile strength for demanding applications. The T20 Torx drive system ensures maximum torque transfer without stripping, significantly reducing installation failures in production environments. Engineered with UNC coarse threads and specialized thread-cutting geometry, these screws efficiently form mating threads in aluminum, brass, cast iron, and sheet metal substrates, eliminating the need for separate tapping operations. The 82° countersink angle and flat head design create flush-mounted connections that withstand vibration and mechanical stress, making them ideal for automotive components, electrical enclosures, machinery assemblies, and structural metal frameworks where reliability and speed of installation are critical.

Specification Summary & Compliance

These tapping screws feature precision UNC coarse threads (10-24) with standard Class 2A thread tolerances for consistent engagement. The manufacturing conforms to standard tapping screw specifications with right-hand thread direction and fully threaded shank design. The product is RoHS 3 (2015/863/EU) compliant, ensuring environmental regulatory adherence for industrial distribution and use. Installation requires a No. 17 drill bit (0.173" diameter) for proper hole preparation, with the 82° countersink angle matching standard chamfering tools for seamless integration into metal assembly processes.