S-94209A570 10-24 x 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black protective coating, extending service life in demanding industrial environments
• Enhanced torque transmission through Torx Plus drive system, reducing cam-out and tool wear during installation
• Exceptional holding power with Tri-Lobe shank design that creates secure, vibration-resistant fastenings in soft materials
• Optimized for non-ferrous metals including aluminum, brass, and copper with specialized thread forming design
• Reliable coarse threading using UNC 10-24 specification for quick installation and strong engagement
• Full environmental compliance meeting RoHS 3 and REACH standards for global manufacturing applications
• Precision length control with tight tolerance of -0.03" to 0" ensuring consistent performance across production runs

Professional Applications & Engineering Value

These thread forming screws are specifically engineered for challenging fastening applications in aluminum, brass, and copper components where traditional cutting screws may compromise material integrity. The Tri-Lobe shank cross-section displaces material during installation, creating a zero-clearance fit that eliminates the need for threaded inserts while providing superior resistance to vibration loosening. The black corrosion-resistant coating on steel substrate ensures long-term performance in environments where moisture or chemical exposure is a concern. Combined with the Torx Plus drive system (IP25/T25), these screws deliver maximum torque transfer efficiency, reducing installation time and preventing fastener damage in high-volume assembly operations common in electronics enclosures, HVAC systems, and automotive components.

Specification Summary & Compliance

This 10-24 UNC thread forming screw features Class 2A thread tolerances with coarse thread spacing, fully threaded blunt tip design, and standard pan head profile. Manufactured to precise dimensional standards with length tolerance of -0.03" to 0" and head diameter of 0.373". The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use in global manufacturing applications. Designed for use with No. 21 drill bit (0.159" diameter) in aluminum, brass, and copper substrates.