Screw cylindrical head - hex DIN 912 M8x20-12.9

Product detailed description

The cylinder head screw with internal hexagon, also known as an inbus, is manufactured according to DIN 912, ISO 4762 and ČSN 021143. This component is intended for fixed screw connections that require high preload and is ideal for assembly using an Allen key. Structurally, the screw is designed with a metric M8 thread, with a thread pitch of 1.25 mm. The total thread length is 20 mm, which corresponds to the total length of the screw.

The screw head is cylindrical in shape with a diameter of 13 mm and a height of 8 mm. The internal hexagon has a width of 6 mm, which allows for effective transmission of torque during assembly. The screw is made of steel with a strength class of 12.9, which guarantees high strength and resistance to mechanical stress. This type of steel is suitable for applications where high tensile and shear strength values are required.

The surface finish of the screw is without special treatment, but it can be blackened, which provides basic protection against corrosion and improves the aesthetic appearance. The screw is suitable for use in various industrial applications where reliability and precision of connections are required. It is ideal for engineering and construction applications where it is necessary to ensure a strong and durable connection of components.