S-94209A340 M8 x 25 mm DIN 7500 D Tapping Screws

Key Features & Benefits at a Glance

• Superior thread-forming performance with tri-lobe shank design ensures secure, vibration-resistant fastening in ductile materials like aluminum, brass, and copper.
• High-strength zinc-plated steel construction provides excellent corrosion resistance and durability for long-lasting assemblies in industrial environments.
• External hex head with 13 mm width allows for high-torque installation using standard tools, speeding up assembly and reducing labor time.
• Fully threaded M8 x 1.25 mm coarse pitch delivers maximum grip length and faster installation compared to fine-thread alternatives.
• Precision-engineered to DIN 7500 D standards guarantees consistent quality, dimensional accuracy, and reliable performance in demanding applications.
• RoHS 3 and REACH compliance ensures environmental safety and regulatory acceptance for global supply chains and sensitive industries.
• 17 mm flange diameter distributes clamping force evenly, reducing surface damage and improving joint integrity.

Professional Applications & Engineering Value

These M8 tapping screws are engineered to solve common fastening challenges in aluminum, brass, and copper assemblies, where traditional threaded fasteners may strip or loosen under vibration. The tri-lobe shank cross-section and thread-forming design displace material during installation, creating strong, precise internal threads without chips or debris—eliminating the need for pre-tapped holes and reducing assembly steps. Made from zinc-plated steel, they offer reliable corrosion protection in moderate environments, while the fully threaded coarse pitch (1.25 mm) ensures rapid driving and high pull-out strength. Ideal for electrical enclosures, automotive components, and HVAC systems, these screws enhance production efficiency and reduce lifecycle maintenance costs.

Specification Summary & Compliance

This M8 x 1.25 mm coarse thread screw features a 25 mm length with a tolerance of -0.65 to 0.65 mm, external hex drive (13 mm width, 8.35 mm height), and blunt tip for controlled penetration. Manufactured in compliance with DIN 7500 D for thread-forming screws, it ensures dimensional consistency and mechanical performance. The product is RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting stringent environmental and safety regulations for industrial use.