S-90203A631 Length 1" Tapping Screws

Key Features & Benefits at a Glance

• Eliminates pre-drilling with integrated No. 3 drill tip, enabling direct installation into materials up to 0.21" thick for faster assembly and reduced labor costs.
• Superior corrosion resistance provided by 18-8 Stainless Steel material, ensuring long-term reliability in harsh or outdoor industrial environments.
• Excellent thread-forming capability creates secure, permanent threads in aluminum and sheet metal, minimizing the risk of loosening under vibration.
• High-torque driving with a square drive style (No. 3 size) prevents cam-out and allows for secure, efficient installation with standard tools.
• Optimized head design with a rounded pan profile offers a low-profile finish and a larger bearing surface for improved clamping force.
• Full threading along the 1" length ensures maximum grip and holding power throughout the entire material thickness.
• Right-hand thread direction provides standard, intuitive installation for operators, streamlining the assembly process.

Professional Applications & Engineering Value

These self-drilling tapping screws are precision-engineered to solve key challenges in fastening aluminum and sheet metal. The 18-8 Stainless Steel construction provides inherent resistance to rust and corrosion, which is critical for HVAC systems, electronic enclosures, and outdoor structures. The integrated No. 3 drill tip and thread-forming design allow the screw to drill its own hole and form a tight-fitting mating thread in one operation. This eliminates the time, cost, and potential misalignment associated with separate drilling and tapping steps, significantly accelerating production lines. The combination of a square drive and pan head ensures high torque transfer and a clean, finished appearance, making these screws a reliable choice for demanding industrial applications where durability and efficiency are paramount.

Specification Summary & Compliance

This No. 12 screw is manufactured to precise dimensional standards with a thread diameter of 0.216" and approximately 14 threads per inch. It is a fully threaded, right-hand thread forming screw. The product is compliant with industry-recognized specifications for material and performance, and the 18-8 Stainless Steel composition ensures compliance with RoHS and REACH environmental directives.