S-90048A144 Length 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance through zinc-plated steel construction, extending service life in industrial environments
• Efficient thread forming capability creates strong, permanent threads in sheet metal without pre-tapping requirements
• Optimized Phillips No. 2 drive provides secure tool engagement and reduces cam-out during installation
• Undercut flat head design with 82° countersink angle ensures flush mounting and prevents surface protrusion
• Full threading and pointed tip enable quick starting and consistent penetration through materials
• Precision dimensional control with 0.138" thread diameter and 18 TPI ensures reliable mating with No. 32 drill bit preparations
• Regulatory compliance assurance meets RoHS 3 and REACH standards for global industrial applications

Professional Applications & Engineering Value

These No. 6-18 thread forming screws deliver exceptional performance in sheet metal applications where vibration resistance and permanent fastening are critical. The zinc-plated steel construction provides essential corrosion protection for industrial environments, while the Phillips flat head design with undercut profile ensures secure, flush mounting that won't interfere with adjacent components. Engineered specifically for 0.025" maximum drilling thickness, these A/AB tapping screws create strong, load-bearing threads through cold forming action, eliminating the need for separate tapping operations and reducing assembly time. The fully threaded design with right-hand threading ensures maximum pull-out strength and consistent clamping force across the entire engagement length, making them ideal for HVAC systems, electrical enclosures, and metal fabrication projects where reliability is paramount.

Specification Summary & Compliance

These precision-engineered tapping screws feature a 0.138" thread diameter with 18 threads per inch and 1/4" length, manufactured to exacting dimensional standards for consistent performance. The thread forming design conforms to A/AB tapping screw specifications, creating secure fastening in prepared holes matching No. 32 drill bit size (0.116" diameter). Compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental responsibility and global market acceptance for industrial applications requiring certified components.