S-90395A158 Length 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in industrial environments
• Excellent thread-forming capability creates permanent, vibration-resistant threads in sheet metal without pre-tapping
• Optimized for 0.025" maximum drilling thickness using No. 32 drill bit for precise sheet metal applications
• Secure square drive (No. 1) provides positive torque transmission and reduces cam-out during installation
• Fully threaded design ensures maximum holding power along the entire 1-1/4" length
• Pan head with standard rounded profile offers low-profile installation and improved aesthetics
• Compliant with RoHS 3 and REACH regulations for environmentally responsible manufacturing and global market acceptance

Professional Applications & Engineering Value

These No. 6 zinc-plated steel tapping screws deliver exceptional performance in sheet metal applications where reliable fastening is critical. The thread forming A/AB type design eliminates the need for pre-tapped holes, reducing installation time and labor costs while creating strong, strip-resistant threads. The combination of 18 threads per inch and pointed tip ensures smooth penetration and secure engagement in metal substrates up to 0.025" thickness. The zinc plating provides essential corrosion protection for industrial environments, while the square drive system prevents tool slippage during high-torque applications. These tapping screws are engineered to withstand vibration and maintain clamping force in demanding metal fastening scenarios across manufacturing, construction, and equipment assembly sectors.

Specification Summary & Compliance

These thread forming screws feature a 0.138" thread diameter with 18 threads per inch and 1-1/4" fully threaded length. The pan head design incorporates a No. 1 square drive for secure installation. Manufactured to industry standards for tapping screw applications, these fasteners comply with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring they meet current international compliance requirements for hazardous substance restrictions.