S-90385A339 Length 2" ASME B18.6.3 Tapping Screws
Tapping Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with zinc-plated steel construction for extended service life in industrial environments
- Efficient thread forming capability creates strong, permanent threads in plastic materials without pre-tapping
- Optimized drive performance with Phillips No. 2 head design for secure tool engagement and reduced cam-out
- Complete fastening coverage through fully threaded 2" length ensures maximum holding power in plastic assemblies
- Precision installation guidance with recommended No. 35 drill bit size (0.11") for proper hole preparation
- Enhanced material compatibility with blunt tip design that minimizes plastic cracking during installation
- Industry-standard compliance meeting ASME B18.6.3 specifications for consistent quality and performance
Professional Applications & Engineering Value
These No. 6 x 2" zinc-plated steel DST tapping screws are engineered specifically for plastic fastening applications where traditional threading methods prove inadequate. The thread forming design creates durable, high-strength threads directly in plastic substrates, eliminating the need for inserts or additional components. The zinc-plated steel construction provides essential corrosion protection while maintaining the necessary hardness for repeated installation cycles. With their Phillips No. 2 drive and fully threaded configuration, these screws deliver reliable performance in automotive trim, electronic enclosures, and consumer products where vibration resistance and long-term fastener integrity are critical. The blunt tip prevents material splitting, making them ideal for brittle plastics and thin-walled applications.
Specification Summary & Compliance
These thread forming screws feature precise 0.138" thread diameter with 19 threads per inch, manufactured to ASME B18.6.3 standards for dimensional accuracy and performance reliability. The pan head design with 0.254" head diameter and 0.097" head height provides optimal clamping force distribution. Compliant with industry standards for plastic fasteners, these right-hand threaded screws ensure consistent performance across production runs and are suitable for use with No. 35 drill bits for proper hole preparation in various plastic materials.
