S-90227A124 Length 25 mm ISO 15482, DIN 7504 P Tapping Screws

Key Features & Benefits at a Glance

• Superior drilling efficiency with a No. 2 drill tip and 6.3mm length, enabling quick penetration into steel and sheet metal without pre-drilling.
• Enhanced corrosion resistance from zinc-plated steel construction, ensuring long-term durability in harsh industrial environments.
• Optimized torque transfer with a Phillips No. 2 drive, reducing cam-out and providing reliable fastening in high-stress applications.
• Secure flush mounting thanks to the standard flat head and 80° countersink angle, preventing snagging and improving aesthetic finish.
• Full-thread engagement for maximum holding power, distributing load evenly and reducing the risk of loosening under vibration.
• Precision thread cutting with BSD tapping method, ensuring clean, strong threads in materials up to 0.094" thick.
• Global compliance assurance meeting ISO 15482 DIN 7504 P standards, along with RoHS 3 and REACH regulations for safe, sustainable use.

Professional Applications & Engineering Value

These M3.9 x 25mm zinc-plated steel tapping screws are engineered to solve common fastening challenges in steel and sheet metal assemblies. The thread-cutting BSD design and fully threaded shank eliminate the need for separate tapping operations, reducing installation time and labor costs. The No. 2 drill tip with a 6.3mm length ensures precise starting and efficient chip removal, minimizing material stress and preventing cracking in thin-gauge metals. With a Phillips drive and flat head profile, these screws provide consistent seating and high clamp force, ideal for automotive, HVAC, and machinery applications where vibration resistance and reliability are critical. The zinc-plated finish further enhances longevity, making these screws a cost-effective solution for both indoor and outdoor industrial environments.

Specification Summary & Compliance

This M3.9 x 25mm tapping screw features a fully threaded right-hand design with a round shank cross-section, ensuring precise fit and ISO 15482 DIN 7504 P dimensional compliance. The flat head has a diameter of 7.5mm and height of 2.3mm, paired with an 80° countersink angle for standard flush installation. Manufactured from zinc-plated steel, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, confirming its suitability for regulated industrial and commercial use without hazardous substances.