S-90086A662 1/2"-13 x 1 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
• Excellent thread-forming capability with Type F thread cutting design creates secure, permanent threads in various metals
• Optimized for multiple materials including aluminum, brass, cast iron, and sheet metal applications
• Enhanced driving efficiency with Phillips No. 4 drive style providing reliable torque transfer and reduced cam-out
• Maximum holding power through full threading along the entire 1½" length for superior grip strength
• Professional flush installation enabled by standard 82° countersink angle and flat head design
• Industry-standard compliance meeting ASME B18.6.3 specifications and RoHS 3 environmental regulations

Professional Applications & Engineering Value

These 1/2"-13 UNC zinc-plated steel tapping screws deliver exceptional engineering value in metal fabrication and assembly operations. The thread cutting Type F design eliminates the need for pre-tapped holes, significantly reducing installation time and labor costs while creating durable, vibration-resistant connections. The coarse UNC thread pattern provides rapid installation and superior pull-out resistance in softer materials like aluminum and sheet metal. The zinc-plated surface treatment offers reliable protection against corrosion in industrial environments, while the Phillips No. 4 drive system ensures consistent torque application without specialized tools. These fully threaded screws maintain consistent holding power across the entire fastener length, making them ideal for critical applications in automotive, machinery, and structural metal assemblies where reliability and compliance with ASME B18.6.3 standards are paramount.

Specification Summary & Compliance

These industrial-grade tapping screws feature precise 1/2"-13 UNC coarse threads with standard Class 2A tolerances for consistent performance. The manufacturing process strictly adheres to ASME B18.6.3 specifications SAE J933, ensuring dimensional accuracy and mechanical reliability. Environmental compliance is maintained through RoHS 3 (2015/863/EU) compliance, making these fasteners suitable for regulated industries. The 82° countersink angle matches standard tooling requirements, while the recommended 29/64" drill bit (0.453" diameter) ensures proper hole preparation for optimal thread engagement and holding strength in various metal substrates.