S-90385A151 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
• Excellent thread-forming capability creates secure, permanent threads in plastic materials without pre-tapping
• Optimized drive efficiency with Phillips No. 2 head design for reliable installation and reduced cam-out
• Maximum material engagement through 19 threads per inch configuration for superior holding power
• Streamlined installation process with pre-determined No. 35 drill bit compatibility (0.11" diameter)
• Enhanced structural integrity with fully threaded design ensuring consistent load distribution
• Industry-standard compliance meeting ASME B18.6.3 specifications for reliable performance

Professional Applications & Engineering Value

These zinc-plated steel tapping screws are specifically engineered for plastic fastening applications where traditional threading methods prove inadequate. The thread-forming DST design eliminates the need for separate tapping operations by displacing material to create strong, permanent threads directly in plastic substrates. This innovative thread forming technology prevents material stress cracking while providing exceptional pull-out resistance. The Phillips pan head configuration offers a balanced combination of driving torque and head profile, making these industrial screws ideal for assembly lines requiring consistent, reliable fastening in plastic components across automotive, electronics, and construction sectors. The blunt tip design ensures precise starting position without damaging delicate plastic structures.

Specification Summary & Compliance

This No. 6 x 3/4" tapping screw features precise dimensional accuracy with 0.138" thread diameter and 19 threads per inch configuration. Manufactured to exacting ASME B18.6.3 standards, these fasteners ensure consistent performance and interchangeability. The product is fully RoHS 3 (2015/863/EU) compliant, containing no restricted hazardous substances. The right-hand threaded, fully threaded design with standard pan head profile provides reliable fastening characteristics suitable for industrial applications requiring plastic fasteners with proven regulatory compliance and quality assurance.