Countersunk Allen screw DIN 7991 M10x30-8.8 galvanized

Product detailed description

The DIN 7991 M10x30-8.8 zinc-plated countersunk head screw is a high-quality fastener designed for demanding structural applications. This screw has a metric thread with a diameter of M10 and a length of 30 mm, which makes it suitable for use in various industries where strength and reliability of the connection are required.

The screw head is countersunk, which means that after installation it is flush with the surface of the material, thus achieving an aesthetic and functional surface without protruding parts. This design is ideal for applications where protrusions need to be minimized, for example in metal structures or in places with limited space. The screw is equipped with an internal hexagon (hexagon), which allows for efficient torque transmission during assembly and disassembly.

The DIN 7991 standard and its equivalents ISO 10642 and ČSN 021144 define the exact dimensions and tolerances that this screw meets. The head height h is 4.4 mm, the hexagon width s is 6 mm and the height k is 6.2 mm. The countersunk head diameter dk is 20 mm and the countersunk head angle is 90°, which guarantees precise seating in the material.

The screw is made of steel of strength class 8.8, which means that it has high tensile strength and is suitable for applications where high demands are placed on mechanical resistance. The zinc coating provides corrosion protection, thus extending the life of the screw even in difficult conditions.

This screw is ideal for use in metal and structural applications where a strong and reliable connection to flat surfaces is required. It is suitable for professional use in mechanical engineering, construction and other technical fields where precision and reliability of connections are important.