S-90769A123 Length 50 mm DIN 7504 N, ISO 7049 Tapping Screws

Key Features & Benefits at a Glance

• Effortless Installation: Integrated 7.5 mm drill tip and thread-forming design eliminates pre-drilling, saving time and labor costs in high-volume assembly.
• Superior Corrosion Resistance: Zinc-plated steel construction provides a durable protective layer, ensuring long-term reliability in various industrial environments.
• High-Strength Fastening: Fully threaded M3.9 shank with a 1.4 mm pitch delivers excellent pull-out strength and vibration resistance in materials like steel and aluminum.
• Optimized Drive Engagement: No. 2 Phillips pan head offers a broad contact area for secure bit engagement, reducing cam-out and tool wear during installation.
• Versatile Material Compatibility: Engineered to drill and tap into steel, stainless steel, aluminum, and sheet metal up to 2.4 mm thick, streamlining inventory for multiple applications.
• Guarded Operational Safety: Rounded pan head design minimizes snagging and provides a lower profile for safer use in assemblies with moving parts.
• Guaranteed Quality & Consistency: Manufactured to DIN 7504 N standards, ensuring precise dimensional accuracy and reliable performance in demanding conditions.

Professional Applications & Engineering Value

This M3.9 x 50mm tapping screw is engineered to solve critical assembly challenges in metalworking and fabrication. Its self-drilling tip and thread-forming action penetrate up to 2.4 mm of material—such as steel, stainless steel, and aluminum sheet metal—without pilot holes, drastically reducing installation time and eliminating drill bit breakage risks. The zinc-plated steel material offers excellent corrosion resistance, extending service life in environments exposed to moisture or chemicals. The fully threaded design ensures maximum thread engagement and clamping force, preventing loosening under vibration. Ideal for HVAC, electrical enclosures, and automotive panels, this screw provides a reliable, one-step fastening solution that enhances production efficiency and structural integrity.

Specification Summary & Compliance

This screw conforms to the dimensional and performance requirements of DIN 7504 N (equivalent to ISO 7049) for thread-forming tapping screws, ensuring precise metric thread tolerances. It is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, adhering to strict environmental and safety regulations for industrial components. The specification includes a No. 2 Phillips drive, pan head style, and a 50 mm length with a minimum thread length of 42.5 mm for consistent, high-quality fastening performance.