Screw cylindrical head - hex DIN 912 M8x70-12.9

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 with high preload. This screw has a metric thread M8 with a length of 70 mm and a pitch of 1.25 mm. The overall head diameter is 13 mm, while the head height is 8 mm. The internal hexagon, also known as the hex, has a width of 6 mm, which allows easy assembly using an Allen key.

The screw is made of steel with a strength class of 12.9, which means that it is able to withstand high mechanical loads. The strength class of 12.9 indicates that the minimum yield strength is 1080 MPa and the minimum tensile strength is 1220 MPa. This type of screw is therefore suitable for applications where high strength and reliability of the connections are required.

The surface of the screw is untreated, which means that it is not electroplated or otherwise surface-treated, but it can be blackened to increase corrosion resistance. The thread length is 28 mm, which provides sufficient surface area to ensure a solid connection in materials of various thicknesses.

This screw is ideal for use in mechanical engineering, the automotive industry and other areas where high demands are placed on the strength and reliability of connections. It is compatible with DIN, ISO and ČSN standards, which guarantees its versatility and wide range of uses in various industrial applications.