Screw cylindrical head - hex DIN 912 M8x75-8.8 galvanized

Product detailed description

The cylinder head screw with internal hexagon, also known as an Allen screw, is manufactured according to the DIN 912 standard, which is equivalent to the ISO 4762 and ČSN 021143 standards. This component is intended for fixed screw connections with high preload, which is important in applications where high strength and reliability of the connection are required. The screw is suitable for assembly using an Allen key, which allows for efficient torque transmission and reduces the risk of damage to the screw head during assembly.

The technical parameters of this screw include a metric thread with a diameter of M8 and a pitch of 1.25 mm. The total length of the screw is 75 mm, while the thread length is 28 mm. The cylinder head has a diameter of 13 mm and a height of 8 mm. The width of the internal hexagon is 6 mm, which corresponds to the standard dimensions for Allen keys. The screw is made of steel with a strength class of 8.8, which means that it has a minimum yield strength of 640 MPa and a minimum tensile strength of 800 MPa. This strength class is suitable for applications where high mechanical resistance is required.

The surface treatment of the screw is made with white zinc plating, which provides protection against corrosion and increases the service life of the component in environments with a moderate corrosive load. Zinc plating also improves the aesthetic appearance of the screw and reduces friction during assembly, contributing to easier and safer use. The screw is part of the fastening material, which is widely used in mechanical engineering, construction and other industries where reliable and strong screw connections are required.