Countersunk Screw DIN-7985 4 x 20 mm A4 - 7985-04X20

The DIN-7985 screw is one of the most widely used fastening elements in the nautical sector, thanks to its design and the robustness of A4 stainless steel. These 4 x 20 mm pieces provide great security against the most demanding marine environments.

Advantages

• Long service life in contact with saltwater
• Countersunk head for a professional finish
• Simple and precise installation
• Compatible with numerous nautical accessories and hardware

Applications

• Assembly of bulkheads, hinges, and metal accessories
• Installation in nautical carpentry and onboard DIY
• Fastenings on decks and wet areas

Usage Tips

• Check length before drilling
• It is recommended to use a screwdriver or driver with torque adjustment

Maintenance

• Rinse with fresh water after intense saltwater exposure
• Check adjustment status periodically and replace if visible wear appears

Technical Specifications