S-90627A117 Length 1/2" ASME B18.6.3 Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black zinc-plated steel construction for extended service life in demanding environments
• Optimal thread engagement through fully threaded design ensures maximum holding power in plastic materials
• Efficient installation with Phillips No. 2 drive providing reliable torque transfer and reduced cam-out risk
• Enhanced material compatibility with thread-forming DST design that creates strong, permanent threads in plastics without pre-tapping
• Precision dimensional control with 19 threads per inch ensuring consistent performance and reliable fastening
• Streamlined assembly process with compatible No. 35 drill bit (0.11" diameter) for proper hole preparation
• Industry-standard compliance meeting ASME B18.6.3 specifications for guaranteed quality and interoperability

Professional Applications & Engineering Value

These No. 6 x 1/2" tapping screws deliver exceptional engineering 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, permanent threads that resist loosening under vibration. The black zinc-plated steel construction provides reliable corrosion protection in industrial environments, while the Phillips pan head design offers a low-profile finish suitable for various plastic components. Engineered specifically for plastic materials, these screws prevent cracking and material stress through controlled thread formation, making them ideal for electronics enclosures, automotive trim, and consumer products where appearance and reliability matter.

Specification Summary & Compliance

These tapping screws feature precision right-hand threads with 19 threads per inch and are fully threaded for maximum grip length. Manufactured to exacting ASME B18.6.3 standards, they ensure dimensional accuracy and performance reliability. The screws are compatible with No. 35 drill bits (0.11" diameter) for proper installation and feature a standard pan head profile with 0.254" diameter and 0.097" height. The black zinc-plated finish provides corrosion resistance while maintaining electrical conductivity where required.