S-90627A131 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
• Excellent thread-forming capability in plastic materials without pre-tapping, reducing installation time and labor costs
• Maximum holding power achieved through fully threaded design that distributes load evenly across the entire fastener length
• Enhanced drive stability with No. 2 Phillips drive that minimizes cam-out and ensures secure installation
• Reduced material stress thanks to blunt tip design that prevents plastic cracking during installation
• Precision compatibility with No. 27 drill bit (0.144" diameter) for optimal hole preparation and fastener performance
• Industry-standard compliance with ASME B18.6.3 specifications ensuring consistent quality and reliability

Professional Applications & Engineering Value

These #10-16 DST tapping screws are specifically engineered for plastic applications where traditional fastening methods often fail. The thread forming design creates strong, permanent threads in plastic materials without removing material, eliminating chips and debris that can compromise electronic components or moving parts. The black zinc-plated steel construction provides essential corrosion protection while maintaining the necessary strength for durable assemblies. With their fully threaded configuration and blunt tip design, these screws prevent stress concentration points that commonly cause plastic cracking, making them ideal for automotive trim, electrical enclosures, consumer electronics, and industrial equipment where plastic component integrity is critical. The combination of Phillips drive and precise dimensional control ensures consistent installation torque and reliable performance in high-volume manufacturing environments.

Specification Summary & Compliance

These tapping screws feature a 0.19" thread diameter with 16 threads per inch and 1/2" length in right-hand thread direction. Manufactured to ASME B18.6.3 standards with Class 2A thread tolerances for consistent quality and performance. The DST (Thread Forming) screw type with round shank cross-section and pan head style (0.322" diameter, 0.115" height) ensures proper fit and function. Compliant with RoHS and REACH environmental regulations for safe use across various industries.