S-90096A550 1/4"-20 x 2" ASME B18.6.3, SAE J933 Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc plating that protects against rust in demanding industrial environments
• Excellent material compatibility for reliable performance in aluminum, brass, cast iron, and sheet metal applications
• Enhanced driving efficiency with external hex/slotted head design for secure tool engagement and torque transmission
• Optimized thread engagement through UNC coarse threading that ensures faster installation and superior holding power
• Increased stability and load distribution with integrated flange design that eliminates the need for separate washers
• Consistent performance assurance with full 2" threading that maintains uniform grip strength across the entire fastener length
• Reliable compliance meeting ASME B18.6.3 specifications and RoHS 3 environmental standards for quality assurance

Professional Applications & Engineering Value

This heavy-duty tapping screw delivers exceptional engineering value through its Type F thread cutting design and zinc-plated steel construction. The UNC coarse thread pattern combined with specialized thread cutting geometry creates precise, self-tapping threads in various materials without pre-tapping requirements. This eliminates secondary operations and reduces assembly time significantly. The external hex drive system provides superior torque transmission for high-tension applications while preventing cam-out issues common in Phillips drives. Engineered specifically for aluminum, brass, cast iron, and sheet metal assemblies, this fastener solves critical challenges in manufacturing, construction, and industrial maintenance where vibration resistance and long-term reliability are paramount. The flanged hex head design distributes clamping force evenly, preventing material deformation and ensuring secure, permanent fastening in high-stress environments.

Specification Summary & Compliance

This precision-engineered 1/4"-20 thread cutting screw features Class 2A thread tolerances with UNC coarse thread spacing and fully threaded shank design. Manufactured to exacting ASME B18.6.3 specifications where applicable under SAE J933 standards, ensuring dimensional accuracy and performance reliability. The product maintains full compliance with RoHS 3 (2015/863/EU) regulations, confirming environmental safety and material restrictions adherence. With a 2" length, 3/8" hex head width, and 0.52" flange diameter, this fastener delivers consistent performance across industrial applications requiring Type F tapping screw functionality.