S-94997A425 Length 19 mm DIN 7981 Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in demanding industrial environments.
• Efficient thread forming technology creates strong, permanent threads in sheet metal up to 0.025" thickness without pre-drilling.
• Optimized drive engagement with Phillips No. 2 drive style provides secure torque transmission and reduces cam-out risk.
• Full threading with pointed tip enables faster installation and superior pull-out resistance in sheet metal applications.
• Standard pan head design with 7.5mm diameter offers excellent bearing surface while maintaining low profile.
• Precision manufacturing compliance with DIN 7981 ensures consistent quality and dimensional accuracy.
• Environmental regulation compliance with RoHS 3 meets international sustainability requirements.

Professional Applications & Engineering Value

These M3.9 tapping screws are specifically engineered for sheet metal applications where reliability and corrosion resistance are paramount. The 18-8 stainless steel construction provides excellent durability against environmental factors, while the thread forming technology eliminates the need for separate tapping operations, significantly reducing assembly time and costs. The coarse thread pattern and fully threaded design ensure maximum holding power in thin materials, making them ideal for electrical enclosures, HVAC systems, and automotive components. The Phillips drive system offers familiar, efficient installation, and the pointed tip facilitates precise starting position in production line environments.

Specification Summary & Compliance

This metric tapping screw features M3.9 size with 19mm length, 7.5mm head diameter, and coarse thread spacing optimized for sheet metal applications. Manufactured to DIN 7981 specifications ensuring dimensional accuracy and performance consistency. The product is RoHS 3 (2015/863/EU) Compliant and features right-hand thread direction with fully threaded shank design. The thread forming tapping method provides secure fastening in materials up to 0.025" maximum drilling thickness without requiring pre-tapped holes.