Screw cylindrical head - hex DIN 912 M4x65-12.9

Product detailed description

The cylinder head screw with internal hexagon, also known as an Allen screw, is designed according to DIN 912, ISO 4762 and ČSN 021143 standards. This component is intended for fixed screw connections that require high preload. The screw has a metric thread with a diameter of M4 and a pitch of 0.70 mm, while its total length is 65 mm. The thread length is 20 mm, which allows sufficient grip in the material.

The screw head is cylindrical in shape with a diameter of 7 mm and a height of 4 mm, which ensures an optimal contact surface for transmitting forces. The internal hexagon, known as the Allen key, allows for assembly using an Allen key, which ensures efficient torque transmission and minimizes the risk of damage to the screw head during assembly.

The screw is made of 12.9 strength steel, which means it has high tensile strength and is suitable for applications with high mechanical loads. The surface finish is untreated or blackened, which provides basic protection against corrosion, however, additional surface treatment is recommended for applications in aggressive environments.

This screw is ideal for use in mechanical engineering and construction, where a reliable and strong connection of components is required. It is suitable for applications where frequent disassembly and reassembly are required, while the internal hexagon allows for easy and quick assembly even in confined spaces.