S-90086A653 3/8"-16 x 3/4" ASME B18.6.3, SAE J933 Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, ensuring long-term durability in demanding industrial environments
• Effortless self-tapping installation through F-type thread cutting design, eliminating the need for pre-tapped holes and reducing assembly time
• Optimized material compatibility with aluminum, brass, cast iron, and sheet metal applications, providing versatile fastening solutions
• Enhanced driving efficiency with Phillips flat head design, allowing flush mounting and secure torque transmission
• Reliable coarse threading with UNC 3/8"-16 profile, delivering superior holding power and vibration resistance
• Precision installation guidance with recommended T drill bit (0.358") and 82° countersink angle for perfect flush mounting
• Industry-standard compliance meeting ASME B18.6.3 and RoHS 3 regulations, ensuring quality and environmental safety

Professional Applications & Engineering Value

These zinc-plated steel tapping screws deliver exceptional engineering value by solving critical installation challenges in metalworking applications. The F-type thread cutting design eliminates costly pre-tapping operations while creating precise, durable threads in aluminum, brass, cast iron, and sheet metal substrates. The Phillips flat head configuration ensures flush surface mounting with reliable torque transmission, preventing cam-out issues during high-volume assembly. With UNC coarse threading and full-length threading, these screws provide maximum pull-out resistance and vibration-proof performance in demanding industrial environments. The combination of zinc plating corrosion protection and standardized dimensions makes them ideal for automotive, machinery, and metal fabrication applications where reliability and compliance with ASME B18.6.3 standards are paramount.

Specification Summary & Compliance

These tapping screws feature precision 3/8"-16 UNC coarse threading with standard thread tolerances and fully threaded shank design. Manufacturing complies with ASME B18.6.3 specifications (referencing SAE J933) for dimensional accuracy and performance reliability. The products are RoHS 3 (2015/863/EU) compliant, ensuring environmental safety standards are met. Installation requires T drill bit (0.358" diameter) with 82° countersink angle for optimal flush mounting in accordance with industry-standard practices.