S-90385A359 Length 1 1/4" 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 demanding environments
- Exceptional holding power in plastic materials through thread forming technology that creates strong, permanent threads without chips
- Reliable installation and removal with Phillips No. 2 drive that prevents cam-out and ensures consistent torque application
- Optimized for plastic applications with blunt tip design that prevents material splitting while maintaining structural integrity
- Maximum thread engagement with fully threaded 1-1/4" length providing superior pull-out resistance
- Industry-standard compatibility meeting ASME B18.6.3 specifications for consistent performance and interchangeability
- Easy installation process requiring only a No. 19 drill bit for proper hole preparation and optimal thread formation
Professional Applications & Engineering Value
These zinc-plated steel tapping screws deliver exceptional performance in plastic fastening applications where vibration resistance and long-term reliability are critical. The thread forming DST design eliminates chip formation during installation, preventing contamination in sensitive assemblies while creating strong, permanent threads in plastic substrates. The Phillips pan head configuration provides a low-profile finish with excellent drive stability, making these No. 12 screws ideal for industrial construction, electrical enclosures, automotive components, and consumer products where plastic-to-plastic or plastic-to-metal connections require durable, vibration-resistant fastening solutions.
Specification Summary & Compliance
Manufactured to ASME B18.6.3 specifications with Class 2A thread tolerances for consistent fit and performance. Features right-hand threading with 16 threads per inch and standard inch system measurements. The fully threaded design ensures maximum holding strength throughout the entire 1-1/4" length. Compliant with industry standards for mechanical fasteners, these DST tapping screws provide reliable performance in commercial and industrial applications where quality and specification compliance are paramount.
