S-90469A118 Length 25 mm DIN 7504 K, ISO 15480 Tapping Screws

Key Features & Benefits at a Glance

• Eliminates pre-drilling with integrated No. 2 drill tip, saving time and labor costs in steel and sheet metal assembly.
• Superior corrosion resistance from zinc-plated steel construction, ensuring long-term reliability in demanding industrial environments.
li>High-torque installation capability via the external hex head and 7mm head width, providing a secure grip for power tools.
• Enhanced load distribution and vibration resistance thanks to the integrated 8.8mm flange, which acts as a built-in washer.
• Robust, permanent fastening achieved through the thread-forming (BSD) design, creating strong threads in base material without chips.
• Full 25mm thread engagement for maximum pull-out strength and a secure hold across the entire material thickness.
• Guaranteed performance and interchangeability by conforming to the stringent DIN 7504 K standard for drilling screws.

Professional Applications & Engineering Value

This M4.2 x 25mm zinc-plated steel flanged tapping screw is engineered to solve critical assembly challenges in steel and sheet metal fabrication. Its primary engineering value lies in combining drilling and tapping into a single operation. The thread-forming action of the BSD type creates a zero-clearance fit, resulting in higher strip-out torque and superior vibration resistance compared to thread-cutting alternatives. The No. 2 drill tip is precisely designed to penetrate up to 0.118" of material, while the flanged head eliminates the need for a separate washer, simplifying inventory and speeding up installation. This makes it an ideal, high-efficiency tapping screw for automotive brackets, electrical enclosures, and machinery panels where speed, strength, and durability are paramount.

Specification Summary & Compliance

This fully threaded screw with a right-hand thread direction and round shank is manufactured to the precise dimensional and performance requirements of DIN 7504 K (equivalent to ISO 15480). It guarantees consistent thread fit and performance for reliable assembly outcomes. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and safe for use in regulated markets.