S-90385A365 Length 3/4" ASME B18.6.3 Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction for extended service life in demanding environments
• Efficient thread-forming installation with DST design creates strong, permanent threads in plastic materials without pre-tapping
• Optimized plastic fastening performance featuring blunt tip design to prevent material splitting and ensure precise placement
• Reliable drive engagement with Phillips No. 3 drive style providing secure torque transmission during installation
• Maximum holding power through fully threaded 15 TPI design that distributes load evenly across the entire fastener length
• Industry-standard compatibility with No. 7 drill bit (0.201") for simplified installation and reduced preparation time
• Consistent dimensional accuracy with standard pan head profile ensuring uniform performance across production runs

Professional Applications & Engineering Value

These No. 14 x 3/4" zinc-plated steel tapping screws deliver exceptional value in plastic fastening applications where material integrity and long-term performance are critical. The thread forming DST design eliminates the need for separate tapping operations, reducing assembly time and labor costs while creating strong, strip-resistant threads in various plastic substrates. The zinc-plated steel construction provides essential corrosion protection for industrial environments, while the Phillips No. 3 drive ensures reliable installation with standard tools. Engineers specify these screws for plastic assembly applications requiring vibration resistance and sustained clamping force, making them ideal for electrical enclosures, automotive components, and consumer products where plastic-to-plastic or plastic-to-metal connections demand durable fastening solutions.

Specification Summary & Compliance

These tapping screws feature precise 0.242" thread diameter with 15 threads per inch and 3/4" length in inch system measurements. Manufactured to meet ASME B18.6.3 specifications for dimensional accuracy and performance requirements, ensuring consistent quality and reliability. The fully threaded design with right-hand thread direction provides complete fastening engagement, while the standard pan head profile (0.492" diameter, 0.175" height) offers optimal bearing surface. Compatible with No. 7 drill bit (0.201" diameter) for proper hole preparation in plastic materials, delivering professional-grade results in industrial fastening applications.