Countersunk Allen screw DIN 7991 M4x6-10.9 galvanized

Product detailed description

The DIN 7991 M4x6-10.9 Allen countersunk screw is a structural component with an internal hexagon, designed for applications where a flat surface of the connection is required. This screw is made of steel of strength class 10.9, which guarantees high strength and reliability of the connection. The surface treatment is made with white zinc plating, which provides protection against corrosion and increases resistance to external influences.

The screw has a metric thread with a diameter of M4 and a length of 6 mm, while the thread pitch is 0.70 mm. The countersunk head has a diameter of 8 mm and is designed so that after screwing in it is flush with the surface of the material, thereby minimizing the risk of catching. The head height is 1.8 mm and the total height of the screw including the head is 2.48 mm. The width of the internal hexagon is 3 mm, which allows for efficient torque transmission during assembly.

This screw complies with DIN 7991, ISO 10642 and ČSN 021144 standards, which ensures its compatibility and versatility in various industrial applications. It is suitable for use in metal and structural applications where a strong and reliable connection with an aesthetic and functional surface is required. The angle of the countersunk head is 90°, which is standard for this type of screw, and ensures optimal embedment in the material.