Cast iron self-tapping screw DIN 939 M12x30-8.8

Product detailed description

The cast iron self-tapping screw according to DIN 939 with dimensions M12x30 and strength class 8.8 is intended for applications requiring solid connections in blind holes. This component is made of steel without surface treatment, which allows it to be used in environments where additional corrosion protection is not required.

The screw has a metric thread with a diameter of 12 mm and a total length of 30 mm. The thread is divided into two parts: the longer thread with a length of 25 mm is intended for screwing into cast iron, while the shorter thread is used for mounting the part. The thread pitch is 1.75 mm, which guarantees a reliable connection and optimal load transfer.

The width c is 4.3 mm, the width e is 15 mm and the width a is 2.2 mm, which are important dimensions for the correct fit and functionality of the screw in the structure. The ČSN 21176 standard is equivalent to the DIN 939 standard, which ensures compatibility with European standards.

This screw is ideal for applications where it is necessary to ensure a strong and stable connection in materials such as cast iron, while its strength class 8.8 provides sufficient resistance to mechanical stress.