S-90203A622 Length 2 1/2" Tapping Screws

Key Features & Benefits at a Glance

• Eliminates pre-drilling requirements with integrated drill tip that penetrates up to 0.1" thickness in aluminum and sheet metal
• Superior corrosion resistance thanks to 18-8 stainless steel construction for long-lasting performance in demanding environments
• Enhanced driving efficiency with square drive design that prevents cam-out and provides maximum torque transfer
• Excellent material displacement through thread forming technology that creates strong, secure fastenings without tapping
• Full-length threading ensures maximum grip and holding power across the entire 2-1/2" length
• Optimized head design with pan head profile that sits flush while providing ample bearing surface
• Reliable performance with standardized No. 2 drill tip that maintains consistent drilling capability

Professional Applications & Engineering Value

These No. 8-18 self-drilling tapping screws are engineered specifically for aluminum and sheet metal applications where efficiency and reliability are paramount. The 18-8 stainless steel construction provides exceptional corrosion resistance, making these fasteners ideal for outdoor, marine, and industrial environments where moisture and chemicals are concerns. The integrated No. 2 drill tip eliminates the need for separate drilling operations, significantly reducing installation time and labor costs while ensuring perfect alignment. The thread forming design creates strong, vibration-resistant connections by displacing material rather than removing it, resulting in superior pull-out strength. The square drive system prevents stripping and cam-out, allowing for higher torque application and more secure fastenings in production environments.

Specification Summary & Compliance

These self-drilling tapping screws feature precise No. 8-18 thread specifications with right-hand threading and full 2-1/2" length. The fasteners maintain standard inch system measurements with consistent Class 2A thread tolerances for reliable performance. Manufactured from 18-8 stainless steel with pan head configuration and square drive compatibility, these screws are designed to meet industrial fastening requirements. The products comply with RoHS and REACH environmental standards and are manufactured according to industry specifications for thread forming screws in metal applications.