Countersunk allen screw ISO 7379 M8 f9 10x40-12.9

Product detailed description

The flush-mounted screw with a cylindrical head with an internal hexagon according to ISO 7379 is intended for applications where precise assembly and high strength are required. This component has a metric thread M8 with a diameter d1 of 10 mm and a total length L of 40 mm. The screw is made of steel of strength class 12.9, which guarantees high tensile strength and resistance to mechanical stress. The surface treatment is not applied, which is suitable for use in environments where additional corrosion protection is not required.

The cylindrical head has a diameter dk of 16.27 mm and a height k of 7 mm, while the internal hexagon with a width of s of 5 mm allows for effective transmission of torque during assembly. The screw has a flush-mounted shaft with a tolerance of f9, which ensures a precise fit in the hole and minimizes play, thereby increasing the stability and accuracy of the connection. The thread length b is 13 mm with a metric pitch of 1.25 mm, which is standard for this type of screw.

This screw is suitable for use in mechanical engineering where there are requirements for high precision and strength of joints, for example in the assembly of machine parts, where it is necessary to ensure precise positioning and minimize movement of components. The screw can be compared with the DIN 9841 standard, which covers similar applications.