Screw cylindrical head - hex DIN 912 M4x80-12.9

Product detailed description

The cylinder head screw with internal hexagon according to DIN 912, ISO 4762 and ČSN 021143 is designed for fixed screw connections where high preload is required. This screw has a metric thread M4 and a length of 80 mm, which allows it to be used in various applications where a longer screw with a smaller diameter is needed.

The screw material is made of steel of strength class 12.9, which means that it has high tensile strength and is suitable for applications where high demands are placed on mechanical resistance. Strength class 12.9 indicates that the minimum tensile strength is 1200 MPa and the yield strength is 1080 MPa, which guarantees reliability in demanding conditions.

The screw head is cylindrical in shape with an internal hexagon, which allows assembly using an Allen key. This type of head is popular for its ability to transmit high torques without damaging the screw head. The screw is supplied without surface treatment, which means it is in a basic black finish, but it can be surface treated according to the requirements of a specific project.

This screw is ideal for use in mechanical engineering, the automotive industry and other industries where reliable and strong connections are required. Its design and material properties guarantee long-term durability and resistance to mechanical stress.