Countersunk Allen screw DIN 7991 M8x25 stainless steel A4

Product detailed description

The DIN 7991 hexagon socket countersunk head screw, also known as ISO 10642, is designed for applications requiring a strong and reliable connection with a flat surface finish. This particular screw has a metric M8 thread with a length of 25 mm and a pitch of 1.25 mm. The screw head is countersunk at a 90° angle, allowing it to be flush with the surface of the material into which it is installed, thereby minimizing protrusion above the surface.

The screw is made of A4 grade stainless steel, which provides high corrosion resistance, making it suitable for use in harsh environments, including outdoor and marine applications. The surface treatment is without additional treatments, which guarantees the natural resistance of the material.

The head diameter (dk) is 16 mm, the head height (k) is 4.9 mm and the height of the countersunk part (h) is 3.5 mm. The width of the internal hexagon (s) is 5 mm, which allows the use of a standard Allen key for assembly and disassembly. The screw is ideal for metal and structural applications where it is necessary to ensure an aesthetically clean and functionally reliable connection.