S-90096A353 3/8"-16 x 2 1/2" 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
• Enhanced holding power through thread-cutting F-type design that creates precise mating threads in various materials
• Quick and secure installation with external hex drive and flanged design that eliminates the need for separate washers
• Optimized material engagement with coarse UNC thread pattern ensuring reliable performance in aluminum, brass, cast iron and sheet metal
• Full-length fastening capability with completely threaded shank for maximum grip along the entire 2 1/2" length
• Industry-standard compliance meeting ASME B18.6.3 specifications for consistent quality and performance
• Environmental responsibility with RoHS 3 compliance ensuring safe use in regulated applications

Professional Applications & Engineering Value

These heavy-duty zinc-plated steel tapping screws deliver exceptional engineering value by solving common fastening challenges in industrial assembly. The thread-cutting F-type design eliminates the need for pre-tapped holes, significantly reducing installation time and labor costs while providing secure fastening in aluminum, brass, cast iron, and sheet metal applications. The combination of coarse UNC threads and fully threaded shank ensures maximum pull-out resistance and vibration resistance in demanding environments. The integrated flanged hex head provides superior torque transmission during installation and distributes clamping force evenly, preventing material damage. This comprehensive design approach makes these industrial screws ideal for manufacturing, metal fabrication, and machinery assembly where reliability and efficiency are critical.

Specification Summary & Compliance

Manufactured to precise dimensional standards with 3/8"-16 UNC coarse threads and Class 2A thread fit for reliable engagement. These flanged hex tapping screws comply with ASME B18.6.3 specifications (SAE J933) ensuring consistent quality and performance. The product meets RoHS 3 (2015/863/EU) compliance requirements for environmental safety and is engineered for use with R drill bit (0.339" diameter) for optimal thread formation in specified materials.