S-90190A113 Length 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
• Exceptional thread-forming capability creates strong, permanent threads in sheet metal without pre-tapped holes
• Optimized Phillips drive design (No. 1 size) ensures secure tool engagement and reduces cam-out during installation
• Full threading along the entire 3/4" length provides maximum holding power and uniform stress distribution
• Precision-engineered pan head profile offers excellent bearing surface and clean finished appearance
• Right-hand thread direction with 24 TPI pitch delivers reliable fastening performance in standard industrial applications
• Comprehensive regulatory compliance meets RoHS 3 and REACH standards for global manufacturing requirements

Professional Applications & Engineering Value

These No. 4-24 thread forming tapping screws are specifically engineered to address common challenges in sheet metal fabrication and assembly. The zinc-plated steel construction provides essential corrosion protection while maintaining high tensile strength for durable fastening solutions. The A/AB tapping screw type with thread forming technology eliminates the need for separate tapping operations, reducing installation time and labor costs. The fully threaded design ensures consistent clamping force across the entire engagement length, preventing loosening from vibration and thermal cycling. Ideal for industrial metalworking applications, these screws create strong, reliable threads in materials up to 0.025" thickness when used with the recommended No. 44 drill bit, making them perfect for HVAC systems, electronic enclosures, and automotive components where vibration resistance and long-term reliability are critical.

Specification Summary & Compliance

These tapping screws feature precision No. 4-24 thread specifications with standard Class 2A thread tolerances for consistent performance. The 0.112" thread diameter with 24 threads per inch follows established industrial standards for sheet metal fastening applications. Manufacturing complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and workplace safety. The thread forming tapping method and pointed tip design facilitate easy starting and smooth installation in pre-drilled holes using the specified No. 44 drill bit (0.086" diameter).