S-90096A356 3/8"-16 x 4" ASME B18.6.3, SAE J933 Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments
• Efficient thread-cutting action with Type F tapping design eliminates need for pre-tapped holes, reducing installation time and labor costs
• Enhanced load distribution through integrated flange design provides wider bearing surface and prevents pull-through in thin materials
• High-torque capability with external hex drive and hex head design allows for secure tightening with standard industrial tools
• Versatile material compatibility specifically engineered for aluminum, brass, cast iron, and sheet metal applications
• Reliable coarse threading with UNC 3/8"-16 profile ensures quick assembly and superior resistance to vibration loosening
• Full-length threading provides maximum grip strength and uniform stress distribution along the entire fastener length

Professional Applications & Engineering Value

Engineered for heavy-duty industrial applications, these zinc-plated steel tapping screws deliver exceptional performance in metal fabrication and assembly operations. The thread cutting Type F design creates precise mating threads in ductile materials like aluminum, brass, and cast iron without requiring pre-tapped holes, significantly reducing installation time and eliminating tap breakage risks. The flanged hex head configuration combines the high torque capability of external hex drive with the load-spreading benefits of an integrated washer, preventing material distortion in thin sheet metal applications. With coarse UNC threading and full-length engagement, these screws maintain secure fastening under vibration while providing quick assembly in production environments. The robust 4-inch length ensures sufficient engagement depth for structural connections in various industrial components.

Specification Summary & Compliance

This 3/8"-16 UNC tapping screw features precision Class 2A thread tolerances with coarse thread spacing and 0.375" thread diameter. Manufactured to ASME B18.6.3 specifications where identified with SAE J933 requirements, ensuring consistent quality and performance. The product is RoHS 3 (2015/863/EU) compliant and meets international environmental standards for hazardous substance restrictions. Designed with fully threaded construction and blunt tip for controlled penetration, these industrial fasteners maintain dimensional accuracy across production batches for reliable interchangeability.