S-90048A106 Length 1/4" 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 holding power through thread forming technology that creates strong, permanent threads in sheet metal without chip removal
• Optimized installation efficiency with Phillips drive and pointed tip design for quick, straightforward insertion and reduced assembly time
• Flush, professional finish achieved with flat undercut head and 82° countersink angle that sits perfectly flush with material surfaces
• Reliable performance in thin materials with maximum drilling thickness capability of 0.025" for various sheet metal applications
• Industry-standard compatibility with A/AB tapping screw specifications and No. 44 drill bit size for consistent, predictable results
• Environmental compliance assurance meeting RoHS 3 and REACH regulations for safe, sustainable industrial use

Professional Applications & Engineering Value

These No. 4-24 thread forming screws deliver exceptional engineering value in sheet metal applications where traditional fastening methods often fail. The zinc-plated steel construction provides essential corrosion protection while maintaining high tensile strength. The thread forming technology eliminates the need for pre-tapped holes, creating stronger threads by displacing material rather than removing it, which prevents metal chips from contaminating sensitive assemblies. The flat undercut head with 82° countersink ensures a completely flush installation, preventing snagging and providing a clean aesthetic finish. These Phillips drive tapping screws are specifically engineered for right-hand threading applications in HVAC systems, electronic enclosures, automotive panels, and industrial equipment where vibration resistance and reliable performance are critical.

Specification Summary & Compliance

This No. 4-24 x 1/4" tapping screw features precise inch system measurements with 0.112" thread diameter and 24 threads per inch for consistent fastening performance. The screw maintains Class 2A thread tolerances and complies with A/AB tapping screw standards for thread forming applications. Manufacturing specifications include fully threaded design with pointed tip for easy starting and round shank cross-section for uniform strength distribution. Regulatory compliance is verified with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) certifications, ensuring environmental safety and industrial regulatory adherence.