S-90203A633 Length 1 1/2" Tapping Screws
Tapping Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
Installation & Application
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Key Features & Benefits at a Glance
- Eliminates pre-drilling with integrated No. 3 drill tip, saving significant labor time and tooling costs in assembly operations.
- Superior corrosion resistance from 18-8 stainless steel construction, ensuring long-term reliability in harsh or outdoor industrial environments.
- Exceptional thread-forming performance creates strong, vibration-resistant threads in aluminum and sheet metal without chip removal.
- High-torque driving capability with square drive design, preventing cam-out and ensuring secure installation with standard tools.
- Optimized for 0.21" maximum material thickness, providing reliable fastening in standard gauge sheet metal and aluminum applications.
- Full 1-1/2" threading delivers maximum grip length and superior holding power across the entire fastener engagement.
- Standard pan head profile offers a balanced combination of low-profile appearance and adequate bearing surface.
Professional Applications & Engineering Value
These No. 12 self-drilling screws with thread forming technology solve critical assembly challenges in aluminum and sheet metal fabrication. The 18-8 stainless steel composition provides essential corrosion resistance for outdoor enclosures, HVAC systems, and industrial equipment exposed to moisture. The integrated No. 3 drill tip penetrates up to 0.21" thickness without pilot holes, eliminating secondary operations while the 14 TPI thread form creates precise, high-strength connections. The square drive and pan head design ensure reliable installation in high-volume production environments, making these tapping screws ideal for metal building components, electrical cabinets, and automotive assemblies where vibration resistance and durability are paramount.
Specification Summary & Compliance
Manufactured to standard inch system specifications with Class 2A thread tolerances for consistent performance. Features fully threaded right-hand direction with round shank cross-section. The 18-8 stainless steel material complies with industry standards for corrosion resistance and mechanical properties. Meets RoHS and REACH compliance requirements for environmental safety.
