S-90469A143 Length 50 mm DIN 7504 K, ISO 15480 Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-plated steel construction, extending service life in demanding industrial environments
• Efficient self-drilling installation with integrated drilling tip (No. 3 type) that eliminates pre-drilling requirements
• Enhanced load distribution through flanged hex head design, reducing surface pressure and preventing material deformation
• Maximum thread engagement with fully threaded shank, providing superior pull-out resistance in steel and sheet metal applications
• Reliable thread forming capability using BSD tapping method, creating strong, vibration-resistant connections without chip formation
• Optimized for 0.207" maximum drilling thickness in steel materials, ensuring consistent performance across various material gauges
• Secure torque transmission with external hex drive design, allowing for high tightening forces without stripping

Professional Applications & Engineering Value

These M5.5 metric tapping screws deliver exceptional engineering value in steel and sheet metal fabrication applications. The zinc-plated steel construction provides essential corrosion protection for industrial environments, while the thread forming design (BSD type) creates permanent, vibration-resistant connections without generating metal chips that could compromise electrical systems. The combination of fully threaded shank and flanged hex head ensures maximum clamping force distribution, preventing loosening under dynamic loads. The integrated drilling tip eliminates secondary operations, significantly reducing assembly time and labor costs in high-volume production settings. These DIN 7504 K certified screws are engineered to maintain structural integrity in construction, automotive, and machinery applications where reliability is critical.

Specification Summary & Compliance

This M5.5 x 50mm tapping screw features precision metric threading with right-hand thread direction and fully threaded configuration. Manufactured to DIN 7504 K standards (equivalent to ISO 15480) for dimensional accuracy and performance consistency. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting the latest environmental regulations for industrial components. The external hex drive (8mm width) and flanged design (11mm diameter) ensure proper installation according to specified torque requirements.