S-90769A117 Length 22 mm DIN 7504 N, ISO 7049 Tapping Screws

Key Features & Benefits at a Glance

• Eliminates pre-drilling with integrated self-drilling tip that penetrates up to 2.4mm thickness in steel, stainless steel, and aluminum, saving labor time and tooling costs.
• Superior corrosion resistance through zinc-plated steel construction, ensuring long-term reliability in demanding industrial environments.
• Optimized thread engagement with metric M3.9 x 1.4mm fully threaded design and thread-forming technology for secure, vibration-resistant fastening in sheet metal and fabric.
• Effortless installation using standard No. 2 Phillips drive and rounded pan head, allowing high-torque application without cam-out for consistent assembly quality.
• Enhanced material compatibility for use in diverse substrates including wood and insulation, providing versatile application across multiple projects.
• Guarded against galvanic corrosion with compliant surface treatment, making it ideal for mixed-material assemblies involving aluminum and stainless steel.
• Precision-engineered tip geometry with 7.3mm drill length ensures clean hole creation and reduced breakout in thin-gauge materials up to specified maximum thickness.

Professional Applications & Engineering Value

Engineered for industrial efficiency, these M3.9 metric tapping screws solve critical assembly challenges by combining self-drilling capability with thread-forming technology. The zinc-plated steel construction resists environmental degradation, while the fully threaded design with 1.4mm pitch ensures maximum pull-out strength in sheet metal, steel frames, and aluminum extrusions. The pan head with Phillips drive accommodates high-speed installation in confined spaces, eliminating separate drilling operations and reducing fastener inventory. Ideal for HVAC ductwork, electrical enclosures, and structural fabrications, these screws deliver consistent performance where drilling and tapping in one operation is essential for project timelines and cost control.

Specification Summary & Compliance

Manufactured to DIN 7504 N standards (referencing ISO 7049) with metric M3.9 screw size and 1.4mm thread pitch. Features right-hand thread direction, fully threaded shank with 14.7mm minimum thread length, and No. 2 drill tip. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations for environmental and safety standards in industrial applications.