S-94209A319 M4 x 8 mm DIN 7500 D Tapping Screws

Key Features & Benefits at a Glance

• Superior vibration resistance through the unique tri-lobe shank design that ensures a permanent, secure fit in ductile materials
• Excellent corrosion protection with a durable zinc-plated steel finish, extending the screw's service life in various industrial environments
• High-strength thread forming action creates strong, load-bearing threads in aluminum, brass, and copper without pre-tapping
• Efficient installation with an external hex head design that provides a positive grip for high-torque driving and quick assembly
• Reliable dimensional consistency with precise M4 x 0.7 mm coarse thread profile ensuring perfect fit and interchangeability
• Enhanced material displacement through thread forming technology that eliminates chips and provides superior pull-out strength
• Full regulatory compliance meeting DIN 7500 D standards for quality assurance in industrial fastening applications

Professional Applications & Engineering Value

These M4 thread forming screws deliver exceptional engineering value in applications involving aluminum, brass, and copper components. The zinc-plated steel construction provides essential corrosion resistance for longevity in demanding environments, while the tri-lobe shank design solves critical vibration-induced loosening problems common in machinery and equipment. The thread forming capability eliminates the need for tapped holes, reducing assembly time and preventing metal chip contamination in sensitive applications. The external hex drive ensures reliable torque transmission during installation, making these tapping screws ideal for high-volume production environments where consistent fastening performance is paramount. Their coarse thread pitch provides excellent holding power in softer materials, preventing strip-out and maintaining joint integrity under dynamic loads.

Specification Summary & Compliance

This M4 x 0.7 mm thread forming screw features precise dimensional control with a length tolerance of -0.45 to 0.45mm and complies with DIN 7500 D manufacturing standards for thread forming screws. The product meets RoHS 3 (2015/863/EU) compliance for restricted hazardous substances and REACH (EC 1907/2006) regulations regarding chemical safety. Manufactured with fully threaded coarse spacing and metric thread specifications, these screws ensure reliable performance in industrial fastening applications requiring certified quality standards.