S-90385A348 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, ensuring long-lasting performance in demanding industrial environments
- Reliable thread forming in plastic materials using DST design that creates strong, permanent threads without pre-tapping
- Maximum holding power and vibration resistance through fully threaded design with 18 threads per inch for secure fastening
- Easy installation and reduced cam-out with Phillips No. 2 drive system and rounded pan head design
- Prevents material splitting thanks to blunt tip configuration that displaces plastic rather than cutting through it
- Industry-standard compliance meeting ASME B18.6.3 specifications for consistent quality and performance
- Optimized drill bit pairing with No. 30 size recommendation for precise installation in plastic applications
Professional Applications & Engineering Value
These No. 8 x 2" zinc-plated steel DST thread forming screws are engineered specifically for plastic fastening applications where traditional screws may strip or loosen over time. The thread forming design creates durable, high-retention threads in plastic materials without generating chips or debris, making them ideal for electronics enclosures, automotive plastic components, and industrial equipment housings. The zinc-plated steel construction provides essential corrosion protection while maintaining the strength needed for long-term structural integrity. With fully threaded shanks and 18 threads per inch, these screws distribute clamping force evenly and resist vibration-induced loosening, solving common plastic fastening failures in manufacturing and assembly operations.
Specification Summary & Compliance
These tapping screws feature precise 0.164" thread diameter with 18 TPI thread pitch and 2" length for consistent performance. Manufactured to meet ASME B18.6.3 standards, ensuring dimensional accuracy and reliable thread forming capabilities. The Phillips No. 2 drive and rounded pan head design provide standardized installation compatibility. Recommended for use with No. 30 drill bit (0.1285" diameter) for optimal hole preparation in plastic materials.
