S-90190A106 Length 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
• Efficient thread forming capability creates permanent, vibration-resistant threads in sheet metal without requiring pre-tapped holes
• Optimized drive engagement with Phillips No. 1 drive style prevents cam-out and ensures secure fastening control
• Maximum material penetration through pointed tip design and full threading for consistent holding power along the entire screw length
• Precision compatibility with No. 44 drill bits (0.086" diameter) for clean installations in materials up to 0.025" thickness
• Enhanced assembly efficiency with standardized pan head profile providing excellent driver access and consistent clamping force
• Regulatory compliance assurance meeting RoHS 3 and REACH standards for global manufacturing and environmental requirements

Professional Applications & Engineering Value

These No. 4-24 thread forming screws deliver exceptional performance in sheet metal assembly applications where traditional fastening methods fall short. The zinc-plated steel construction provides essential corrosion protection while maintaining the high tensile strength needed for durable connections. Engineered with A/AB thread forming technology, these Phillips pan head screws displace material to create strong, permanent threads that resist loosening under vibration - a critical advantage in automotive, HVAC, and electronic enclosure applications. The fully threaded design with pointed tip ensures rapid penetration and consistent clamping force distribution, reducing installation time while improving joint integrity. This combination of features addresses common industrial challenges including assembly speed, vibration resistance, and corrosion protection in thin-material fastening scenarios.

Specification Summary & Compliance

This tapping screw features precision No. 4-24 thread specifications with 0.112" thread diameter and 24 threads per inch, manufactured to industry-standard tolerances for consistent performance. The thread forming design follows established A/AB tapping screw standards for reliable installation in sheet metal applications. Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and global market acceptance. The screw's dimensional accuracy, including 1/4" length and 0.219" head diameter, maintains interoperability with standard components while the specified No. 44 drill bit compatibility (0.086" diameter) ensures proper hole preparation for maximum thread engagement.