S-93945A048 Length 3" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments and extended service life.
• Efficient thread-forming installation creates strong, permanent threads in sheet metal without pre-tapping, reducing assembly time and labor costs.
• Optimal flush finishing with a standard 82° flat head profile, allowing the screw to sit neatly countersunk for a smooth, professional surface.
• Enhanced drive torque and strip resistance provided by the square drive (No. 2), ensuring secure installation and reliable performance under vibration.
• Full-length threading and pointed tip for maximum grip and faster starting, facilitating precise alignment and strong holding power in metal sheets.
• Regulatory compliance assurance with RoHS 3 and REACH standards, meeting international environmental and safety regulations for industrial components.
• Precision compatibility with a No. 21 drill bit (0.159" diameter), ensuring clean, accurate pilot holes for consistent and reliable fastening.

Professional Applications & Engineering Value

These No. 10 flat head tapping screws are specifically engineered to address common challenges in sheet metal fabrication, such as material fatigue and corrosion. The 18-8 stainless steel composition provides excellent strength and rust resistance, crucial for outdoor or high-moisture environments. The thread forming Type A/AB design displaces material to create robust internal threads, eliminating the need for separate nuts or tapped holes, which streamlines assembly and reduces component count. The fully threaded shank and pointed tip ensure quick starts and uniform load distribution, preventing loosening under vibration. This makes them ideal for HVAC systems, electronic enclosures, and automotive panels, where durability and a flush finish are paramount for both performance and aesthetics.

Specification Summary & Compliance

This product adheres to standard inch measurements with a No. 10 screw size, 3" length, and right-hand thread direction. The threading features approximately 12 threads per inch for a fine, secure fit. It is designed for use with a No. 21 drill bit (0.159" diameter) and a standard 82° countersink angle. Compliance is confirmed with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring the absence of restricted hazardous substances and supporting sustainable industrial practices.