Countersunk Allen screw DIN 7991 M16x25-8.8 galvanized

Product detailed description

The DIN 7991 countersunk head screw, with dimensions M16x25, is made of steel of strength class 8.8. This screw is designed for applications requiring a strong and reliable connection, while its countersunk head allows alignment with the connecting surface, thereby achieving an aesthetic and functional appearance of the joint. The internal hexagon (hexagon) ensures effective torque transmission during assembly and disassembly, which is important for precise and safe fastening.

The screw has a metric thread with a diameter of M16 and a length of 25 mm, while the thread pitch is 2.00 mm. The countersunk head has a diameter of 30 mm and a height of 5.3 mm, which allows it to be completely embedded in the material. The width of the internal hexagon is 10 mm, which is optimized for use with common Allen keys. The head angle is 90°, which is standard for countersunk screws, and ensures proper seating in pre-drilled holes.

The screw material is steel, which is electroplated with white zinc, which provides corrosion protection and extends the life of the component in various environments. The zinc coating is suitable for applications where increased resistance to weathering and chemical agents is required.

This screw is ideal for metal and structural applications where it is necessary to achieve a flat joint surface without protruding elements. It is suitable for use in mechanical engineering, construction and other industries where there are requirements for high strength and reliability of joints. The screw meets ISO 10642 and ČSN 021144 standards, which guarantees its compatibility with international standards.