S-90769A121 Length 38 mm DIN 7504 N, ISO 7049 Tapping Screws

Key Features & Benefits at a Glance

• Superior material durability with zinc-plated steel construction that resists corrosion, extending service life in demanding environments.
• Efficient thread forming technology creates secure, permanent threads without pre-drilling, reducing installation time and labor costs.
• Versatile drilling capability with a 7.5mm drill tip that penetrates up to 2.4mm thickness in steel, aluminum, wood, and other materials.
• Reliable fastening performance ensured by a fully threaded M3.9 design with 1.4mm pitch, providing excellent pull-out resistance.
• Easy installation and removal thanks to the Phillips No. 2 drive and rounded pan head, minimizing tool slippage and damage.
• Broad material compatibility for use in steel, stainless steel, aluminum, fabric, insulation, sheet metal, and wood applications.
• Compliance with international standards including DIN 7504 N and ISO 7049, guaranteeing consistent quality and interchangeability.

Professional Applications & Engineering Value

These M3.9 tapping screws are engineered to solve common industrial fastening challenges, such as joining dissimilar materials or working in confined spaces where pre-tapped holes are impractical. The zinc-plated steel material offers excellent corrosion resistance, while the thread forming design eliminates chip formation, making them ideal for sheet metal, aluminum assemblies, and wood constructions. The integrated drill tip allows for direct penetration into materials up to 2.4mm thick, streamlining assembly processes in construction, HVAC, and automotive industries. By combining metric thread precision with a Phillips drive, these screws ensure reliable, vibration-resistant connections that withstand dynamic loads and environmental stressors.

Specification Summary & Compliance

This M3.9 x 38mm screw features a fully threaded metric design with an approximate pitch of 1.4mm and a minimum thread length of 30.5mm, adhering to standard dimensional tolerances. It conforms to DIN 7504 N and ISO 7049 specifications for thread forming screws, ensuring consistent performance. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming the absence of hazardous substances and supporting sustainable industrial practices.