Cast iron self-tapping screw DIN 939 M12x80-8.8

Product detailed description

The cast iron stud bolt according to DIN 939 with dimensions M12x80 and strength class 8.8 is designed for applications requiring solid connections in blind holes. This bolt has a metric thread with a diameter of M12 and a total length of 80 mm. The thread is divided into two parts: the longer thread with a length of 30 mm is designed for screwing into cast iron, while the shorter thread is used for mounting other parts. The thread pitch is 1.75 mm, which ensures reliable fastening and optimal distribution of forces in the joint.

The material of the bolt is steel with strength class 8.8, which means that it has a minimum yield strength of 640 MPa and a minimum tensile strength of 800 MPa. This strength class is suitable for applications where higher mechanical resistance is required. The screw is supplied without surface treatment, which is important to consider when using in environments with higher humidity or corrosive conditions, where additional surface protection might be required.

The width dimensions cae are 4.3 mm and 15 mm, while the width a is 2.2 mm. These dimensions are important for the precise fit of the screw in the structure and ensuring the correct function of the joint. The screw is suitable for use in various industrial sectors where reliable connection of components with cast iron parts is required.