S-90096A418 3/8"-16 x 1 1/4" ASME B18.6.3, SAE J933 Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding industrial environments
• Enhanced installation efficiency through combined external hex/slotted drive system accommodating multiple tool types
• Exceptional material penetration with Type F thread cutting design that eliminates pre-tapping in aluminum, brass, cast iron and sheet metal
• Increased bearing surface from integrated 0.78" flange design distributing load evenly and preventing pull-through
• Optimized thread engagement with coarse UNC thread spacing and full threading for faster installation and superior holding power
• Reliable performance standardization meeting ASME B18.6.3 specifications for consistent quality and interchangeability
• Environmental compliance assurance with RoHS 3 certification for safe use in regulated applications

Professional Applications & Engineering Value

These 3/8"-16 UNC zinc-plated steel flanged tapping screws deliver exceptional engineering value by solving critical fastening challenges in metal fabrication and assembly operations. The thread cutting design (Type F) eliminates the need for separate tapping operations, significantly reducing installation time and labor costs while creating precise mating threads in aluminum, brass, cast iron, and sheet metal applications. The combination of coarse thread spacing and fully threaded shank ensures maximum thread engagement and pull-out resistance, while the zinc-plated steel construction provides reliable corrosion protection for extended service life in industrial environments. The integrated flange design eliminates the need for separate washers, streamlining inventory and installation processes while providing superior clamp load distribution.

Specification Summary & Compliance

This flanged tapping screw features precision 3/8"-16 UNC coarse threads with Class 2A tolerance for consistent performance. Manufactured to exacting ASME B18.6.3 specifications SAE J933, ensuring dimensional accuracy and mechanical properties. The product is fully RoHS 3 (2015/863/EU) compliant for environmental safety and regulatory acceptance. Designed for use with R drill bit (0.339" diameter) for optimal thread formation in specified materials. The external hex/slotted drive configuration provides versatile installation options while maintaining torque transmission capability.