S-90096A447 3/8"-16 x 2" 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
• Excellent material compatibility with thread-cutting F-type design that creates strong threads in aluminum, brass, cast iron, and sheet metal
• Enhanced installation efficiency through external hex drive and flange design that eliminates need for separate washers
• Maximum holding power achieved through fully threaded UNC coarse thread pattern and serrated locking features
• Reliable vibration resistance from serrations under the flange that prevent loosening under dynamic loads
• Precise dimensional accuracy with ASME B18.6.3 compliance ensuring consistent performance and interchangeability
• Environmental compliance meeting RoHS 3 standards for safe use in regulated applications

Professional Applications & Engineering Value

This 3/8"-16 zinc-plated steel flanged tapping screw delivers exceptional engineering value in metal fabrication and assembly operations. The thread-cutting F-type design eliminates the need for pre-tapped holes, significantly reducing installation time and labor costs while creating strong, permanent threads in various materials including aluminum, brass, cast iron, and sheet metal. The integrated flange with serrations provides superior clamping force and vibration resistance, preventing joint failure in high-stress applications. The external hex drive allows for high-torque installation with standard tools, while the zinc plating offers reliable corrosion protection in industrial environments. These features make it an ideal tapping screw for automotive, machinery, and structural applications where reliability and efficiency are critical.

Specification Summary & Compliance

This flanged tapping screw features 3/8"-16 UNC coarse threads with full threading and blunt tip design. Manufactured to ASME B18.6.3 specifications (SAE J933) ensuring dimensional accuracy and performance reliability. The product is RoHS 3 (2015/863/EU) compliant for environmental safety and meets industry standards for thread cutting screws in metal applications. Recommended drill bit size R (0.339" diameter) for optimal thread formation in specified materials.