S-90203A635 Length 3/4" Tapping Screws

Key Features & Benefits at a Glance

• Eliminates pre-drilling with self-drilling tip that penetrates up to 0.22" thickness in aluminum and sheet metal, saving time and labor costs.
• Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh environments and outdoor applications.
• Enhanced torque transmission via square drive design, reducing cam-out and ensuring secure, reliable fastening.
• Full threading provides consistent grip and holding power along the entire 3/4" length for stable assemblies.
• Thread forming design creates strong, vibration-resistant threads in ductile materials without cutting or removing material.
• Pan head style offers a low-profile, rounded finish for a neat appearance and reduced snagging risk.
• Right-hand threading ensures standard installation compatibility and ease of use with common tools.

Professional Applications & Engineering Value

These 1/4"-14 thread forming tapping screws are precision-engineered to address common challenges in aluminum and sheet metal fabrication, where material integrity and assembly speed are critical. The 18-8 stainless steel composition provides excellent durability and resistance to oxidation, making these screws suitable for HVAC, automotive, and construction applications exposed to moisture or chemicals. The self-drilling tip (No. 3 type) and thread forming action eliminate the need for separate drilling and tapping steps, reducing installation time and minimizing hole preparation errors. This design ensures strong, strip-resistant threads that maintain clamp load under vibration, enhancing the longevity of assembled components. The square drive further supports efficient torque application, preventing tool slippage and ensuring consistent fastening in high-volume production environments.

Specification Summary & Compliance

This product adheres to standard inch measurements with a 1/4" thread diameter and 14 threads per inch, ensuring compatibility with common industrial specifications. The screws feature a pan head with standard rounded profile, square drive (No. 3 size) for secure tool engagement, and fully threaded shank for uniform load distribution. Manufactured from 18-8 stainless steel, these fasteners meet general industry standards for material quality and are compliant with RoHS and REACH environmental regulations, supporting safe and sustainable usage in various sectors.