S-94209A540 8-32 x 3/8" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black protective coating for extended service life in harsh industrial environments
• Enhanced torque transmission through Torx Plus IP20 drive system, reducing cam-out and tool wear
• Reliable thread forming capability with Tri-Lobe shank design for secure fastening in aluminum, brass, and copper
• Optimized for soft materials with coarse UNC thread spacing and thread forming method for strong, vibration-resistant connections
• Streamlined installation process using standard No. 29 drill bit (0.136" diameter) for precise hole preparation
• Comprehensive regulatory compliance meeting RoHS 3 and REACH standards for global market acceptance
• Versatile pan head design with rounded profile for both functional performance and aesthetic applications

Professional Applications & Engineering Value

These 8-32 UNC thread forming screws deliver exceptional engineering value in aluminum, brass, and copper applications where traditional fastening methods often fail. The Tri-Lobe shank cross-section displaces material during installation, creating stronger, more reliable threads without chip formation that can compromise electrical or fluid systems. The black corrosion-resistant coating on steel substrate provides critical protection against environmental factors in outdoor, marine, and industrial settings. With Torx Plus drive system (IP20/T20), engineers benefit from higher torque transmission capabilities, reducing installation time and preventing fastener damage during high-volume assembly operations. The combination of thread forming technology and coarse thread spacing ensures optimal performance in soft metals where stripping and vibration loosening are common concerns.

Specification Summary & Compliance

This No. 8 screw features precise 3/8" length with -0.03" to 0" tolerance and fully threaded right-hand configuration. Manufactured to UNC thread standards with coarse spacing and Class 2A fit for reliable performance. The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental responsibility and market accessibility. The thread forming tapping method and blunt tip design are engineered specifically for ductile metal applications requiring strong, permanent fastening solutions.