S-90385A334 Length 5/8" 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 various environments
• Excellent vibration resistance through thread-forming DST technology that creates permanent, secure threads in plastic materials
• Optimized for plastic applications with blunt tip design that prevents material splitting during installation
• Enhanced driving efficiency with Phillips No. 2 drive that provides reliable torque transfer and reduces cam-out
• Maximum thread engagement with fully threaded 19 TPI design ensuring superior holding power throughout the fastener length
• Easy installation alignment with standard pan head profile that sits flush against surfaces while providing good clearance
• Industry-standard compatibility with No. 35 drill bits (0.11") for precise hole preparation and optimal performance

Professional Applications & Engineering Value

These zinc-plated steel tapping screws are specifically engineered for plastic fastening applications where traditional fasteners fail. The thread-forming DST technology eliminates the need for tapping operations by creating strong, permanent threads in plastic materials through material displacement rather than cutting. This results in superior vibration resistance and prevents loosening under dynamic loads. The fully threaded design with 19 threads per inch ensures maximum holding power across the entire engagement length, while the blunt tip prevents plastic splitting during installation. The Phillips drive system provides efficient torque transfer for production environments, making these screws ideal for plastic assembly in automotive trim, electronic enclosures, and consumer products where reliable, vibration-resistant fastening is critical.

Specification Summary & Compliance

This No. 6 x 5/8" tapping screw features inch system measurements with precise dimensional accuracy meeting ASME B18.6.3 specifications. The fastener includes right-hand threads with 19 TPI thread pitch and fully threaded shank design. Manufactured from zinc-plated steel for corrosion protection, these screws are designed for use with No. 35 drill bits (0.11" diameter) in plastic materials. The product complies with ASME B18.6.3 standards for mechanical and dimensional requirements, ensuring consistent performance and reliability in industrial applications.