S-90627A129 Length 3/8" ASME B18.6.3 Tapping Screws

Key Features & Benefits at a Glance

• Superior material engagement in plastics with DST thread forming technology that creates strong, permanent threads without chip removal
• Enhanced corrosion resistance through black zinc-plating on steel construction for extended service life in industrial environments
• Optimized drive efficiency with No. 2 Phillips pan head design providing secure tool engagement and reduced cam-out during installation
• Full-length fastening capability with completely threaded shank ensuring maximum holding power across the entire screw length
• Precision installation control featuring blunt tip design that prevents material damage and ensures proper thread starting position
• Reliable performance standardization meeting ASME B18.6.3 specifications for consistent quality and dimensional accuracy
• Simplified assembly process with pre-determined No. 27 drill bit size for precise hole preparation and optimal thread formation

Professional Applications & Engineering Value

These No. 10-16 thread forming screws deliver exceptional value in plastic assembly applications where traditional fastening methods often fail. The DST thread forming technology eliminates the risk of material cracking or stress concentration by displacing plastic material rather than cutting it, creating stronger threads with improved pull-out resistance. The black zinc-plated steel construction provides essential corrosion protection while maintaining the necessary strength for durable plastic fastening. With their fully threaded design and rounded pan head profile, these tapping screws ensure uniform stress distribution and reliable performance in automotive components, electronic enclosures, and industrial plastic assemblies where vibration resistance and long-term reliability are critical engineering requirements.

Specification Summary & Compliance

This tapping screw features a No. 10-16 thread with Class 2A tolerance, 3/8" length, and complies with ASME B18.6.3 manufacturing standards. The inch system measurement ensures precise dimensional control with recommended No. 27 drill bit (0.144" diameter) for proper installation. The thread forming design and right-hand threading provide consistent performance in plastic materials, while the manufacturing process adheres to industry standards for quality assurance and dimensional accuracy.