S-90048A119 Length 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments
• Excellent thread-forming capability with A/AB tapping screw type design, creating strong, permanent threads in sheet metal without pre-tapping
• Optimized flush installation featuring standard flat head profile with 82° countersink angle for smooth, secure seating in sheet metal applications
• Enhanced driving efficiency with Phillips No. 1 drive style, providing reliable torque transfer and reduced cam-out during installation
• Maximum holding power through fully threaded design, ensuring consistent engagement along the entire 1-1/4" length for superior fastening strength
• Precision compatibility with No. 44 drill bit (0.086" diameter), enabling clean installation in sheet metal up to 0.025" thickness
• Regulatory compliance assurance meeting RoHS 3 and REACH standards, ensuring environmental responsibility and global market acceptance

Professional Applications & Engineering Value

These zinc-plated steel tapping screws deliver exceptional performance in sheet metal applications where vibration resistance and permanent fastening are critical. The thread forming design eliminates the need for separate tapping operations, creating strong, clean threads that resist loosening under stress. The Phillips flat head configuration with 82° countersink provides flush mounting that prevents snagging while maintaining structural integrity. Engineered for industrial reliability, these fully threaded fasteners distribute clamping force evenly, making them ideal for HVAC systems, electronic enclosures, automotive panels, and machinery assemblies where consistent performance in thin materials is essential.

Specification Summary & Compliance

Precision-manufactured to standard inch dimensions with No. 4-24 thread specification (0.112" diameter, 24 TPI) and right-hand threading. Features Class 2A thread tolerances for reliable engagement and consistent performance. The A/AB tapping screw type follows industry-standard thread forming specifications. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory acceptance for industrial and commercial applications worldwide.