Cast iron self-tapping screw DIN 939 M8x20-8.8

Product detailed description

The cast iron stud bolt according to DIN 939 with dimensions M8x20 and strength class 8.8 is designed for reliable and strong connections in blind holes. This component is made of steel, which guarantees high strength and resistance to mechanical stress. The bolt has a metric thread with a diameter of M8 and a pitch of 1.25 mm, which is a standard size for this type of application.

The total length of the bolt is 20 mm, while the length of the thread on the longer end, intended for screwing into cast iron, is 16 mm. The shorter thread is used for mounting the connected part. The thread width at the end is 1.6 mm, the width c is 3.2 mm and the width e is 10 mm, which corresponds to the standard dimensions for this type of screw.

The strength class 8.8 indicates that the screw has a minimum yield strength of 640 MPa and a minimum tensile strength of 800 MPa, which makes it suitable for use in applications where high mechanical properties are required. The surface treatment is not applied, which means that the screw is in the basic steel version without additional corrosion protection. This type of screw is ideal for applications where high strength and reliability of joints are required, especially in cast iron structures.