Screw cylindrical head - hex DIN 912 M20x340-8.8

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 that require high preload. This type of screw is ideal for applications where it is necessary to achieve a reliable and solid connection, while the assembly is carried out using an Allen key, which guarantees precise and safe tightening.

The screw has a metric thread with a diameter of M20 and a length of 340 mm, which makes it suitable for use in structures where longer fasteners are required. The screw material is steel of strength class 8.8, which means that it has a minimum yield strength of 640 MPa and a minimum tensile strength of 800 MPa. These properties ensure high resistance to mechanical stress and reliability in harsh conditions.

The surface finish of the screw is without additional treatment, which indicates that the screw is supplied in black, typical of untreated steel. This type of surface finish is suitable for applications where increased corrosion resistance is not required or where the screws are protected in other ways, for example by placing them indoors or using protective coatings.

Hex socket head screws are popular for their ability to transmit high torques without damaging the head, which is important in applications requiring frequent assembly and disassembly. This screw is supplied individually, which allows for precise planning and control over the number of components used in a project.