S-90627A123 Length 3/8" ASME B18.6.3 Tapping Screws

Key Features & Benefits at a Glance

• Superior thread retention in plastic materials through DST thread forming technology that creates strong, permanent threads without chipping or cracking
• Enhanced corrosion resistance with black zinc-plated steel construction for extended service life in various industrial environments
• Optimized drive efficiency with No. 2 Phillips pan head design providing excellent torque transfer and reduced cam-out during installation
• Maximum holding power achieved through fully threaded design with 18 TPI and blunt tip for secure fastening in plastic applications
• Reliable dimensional consistency with 0.164" thread diameter and 3/8" length ensuring precise fit and repeatable performance
• Industry-standard compliance meeting ASME B18.6.3 specifications for quality assurance in professional applications
• Simplified installation process with recommended No. 30 drill bit (0.1285" diameter) for proper thread forming in plastic substrates

Professional Applications & Engineering Value

These No. 8 Phillips pan head tapping screws are specifically engineered for plastic fastening applications where traditional threaded fasteners may fail. The DST thread forming technology creates strong, permanent threads in plastic materials without generating chips or causing material stress cracks. The black zinc-plated steel construction provides essential corrosion protection while maintaining the mechanical strength required for industrial environments. With their 18 TPI thread pitch and blunt tip design, these screws distribute installation forces evenly, preventing plastic deformation and ensuring secure, vibration-resistant connections. Ideal for plastic assembly operations in automotive components, electrical enclosures, and consumer products where reliable fastening integrity is critical.

Specification Summary & Compliance

These tapping screws feature precise dimensional specifications including 0.164" thread diameter, 3/8" length, and 18 threads per inch with standard thread tolerances. The black zinc-plated steel construction meets industry standards for corrosion resistance, while the Phillips No. 2 drive and pan head design ensure compatibility with standard installation tools. Manufactured in full compliance with ASME B18.6.3 specifications, these thread forming screws deliver consistent performance and reliability for professional plastic fastening applications. The product conforms to standard industrial requirements for mechanical fasteners used in plastic assembly operations.