S-90203A613 Length 3/8" Tapping Screws

Key Features & Benefits at a Glance

• Eliminates pre-drilling requirements with integrated No. 2 drill tip that penetrates up to 0.1" thickness in aluminum and sheet metal
• Superior corrosion resistance provided by 18-8 stainless steel construction for long-lasting performance in demanding environments
• Enhanced torque transmission through square drive design that prevents cam-out and ensures secure installation
• Complete thread engagement with fully threaded shank that maximizes holding power across the entire fastener length
• Optimized for thread-forming applications in ductile materials without requiring tapped holes
• Streamlined installation process with self-drilling capability that reduces labor time and tool requirements
• Secure fastening in thin materials with specialized pan head design that provides reliable clamping without pull-through

Professional Applications & Engineering Value

These self-drilling tapping screws deliver exceptional value in aluminum fabrication and sheet metal assembly operations. The combination of 18-8 stainless steel material and thread forming design eliminates multiple production steps by integrating drilling and fastening into a single operation. The No. 2 drill tip efficiently penetrates materials up to 0.1" thick without work hardening issues common in aluminum applications. The square drive system ensures maximum torque transfer during installation, reducing the risk of stripped drive heads while the fully threaded design provides consistent clamping force across the entire engagement length. This engineering solution addresses common challenges in metal fabrication, including material galling, corrosion concerns, and installation efficiency.

Specification Summary & Compliance

Manufactured to precise inch system specifications with No. 8-18 thread size and 3/8" length, these screws feature standard right-hand threads with complete threading from tip to head. The pan head style with rounded profile measures 0.322" in diameter and 0.115" in height, providing optimal bearing surface. The thread forming tapping method creates strong, secure threads in ductile materials without chip removal. These industrial fasteners comply with relevant industry standards for self-drilling screws and are manufactured from 18-8 stainless steel for consistent performance and corrosion resistance in demanding applications.