Countersunk Allen screw DIN 7991 M5x70-10.9

Product detailed description

The countersunk hexagon socket screw according to DIN 7991, with dimensions M5x70 and strength class 10.9, is intended for applications requiring countersunk connections with high preload and precise fit. This screw has a metric thread with a diameter of M5 and a length of 70 mm, while the thread length is 22 mm. The thread pitch is 0.80 mm, which is standard for this thread diameter. The screw is made of steel without surface treatment, which means that it is not protected against corrosion and is therefore suitable for use in environments where it is not exposed to moisture or aggressive chemicals.

The screw head is countersunk, which means that after installation it is flush with the surface of the material into which it is fastened. The head height is 2.3 mm and the head diameter (dk) is 10 mm, with a head angle of 90 degrees, which meets the standard requirements for countersunk heads. The internal hexagon, which serves to tighten the screw, has a width of 3 mm. The height k, which is the distance from the base of the head to the beginning of the thread, is 3.2 mm.

This screw meets the standards DIN 7991, ISO 10642 and ČSN 021144, which guarantees its compatibility and interchangeability with other components according to these standards. The strength class 10.9 indicates that the screw has a high tensile strength, which makes it suitable for applications where it is necessary to transmit high mechanical loads. The screw is ideal for use in engineering, construction and other industries where reliability and precision of connections are required.