S-92470A364 Length 22 mm DIN 7981 Tapping Screws

Key Features & Benefits at a Glance

• Corrosion-resistant 18-8 stainless steel construction ensures long-term reliability in humid or demanding industrial environments.
• Thread forming design creates strong, permanent threads in sheet metal without pre-drilling, reducing assembly steps and labor costs.
• Coarse thread profile provides faster installation and superior resistance to vibration loosening in sheet metal applications.
• Fully threaded shank with pointed tip allows for easier starting and maximum thread engagement across the entire 22mm length.
• Phillips No. 2 drive and standard pan head offer secure tool engagement and a low-profile finish for a neat appearance.
• Compliance with DIN 7981 standard guarantees consistent dimensional accuracy, interchangeability, and reliable performance.
• Capable of penetrating up to 0.025" sheet metal thickness, making it a versatile choice for various light-gauge metal assemblies.

Professional Applications & Engineering Value

This M3.9 tapping screw is engineered to solve common fastening challenges in sheet metal fabrication. Its 18-8 stainless steel material provides excellent corrosion resistance, crucial for outdoor enclosures, electrical cabinets, or HVAC components. The thread forming (Type C) action displaces material to create a zero-clearance fit, eliminating the need for tapped holes and significantly speeding up production lines. The coarse thread and fully threaded design ensure high pull-out strength and prevent back-out under stress, making these Phillips pan head screws ideal for securing metal brackets, panels, and assemblies where vibration resistance and durability are paramount. This design directly addresses the need for faster, more reliable fastening in high-volume industrial settings.

Specification Summary & Compliance

This screw conforms to the dimensional and mechanical specifications of the DIN 7981 standard, ensuring precise Class 2A thread tolerances for consistent performance. Key specifications include a M3.9 coarse thread, 22mm length, and a 7.5mm pan head diameter. The 18-8 stainless steel construction is inherently compliant with RoHS and REACH regulations, making it suitable for use in various regulated industries. The manufacturing process adheres to strict quality controls for reliable thread forming in sheet metal applications.