Self-tapping screw for steel DIN 938 M20x90-8.8

Product detailed description

The steel self-tapping screw according to DIN 938 with dimensions M20x90 and strength class 8.8 is designed for creating solid connections in steel structures, especially in blind holes. This type of screw is characterized by threads on both ends, with the longer thread intended for screwing into the material and the shorter thread with a chamfer prepared for fastening the nut.

The diameter of the screw is M20, which means that the outer diameter of the thread is 20 mm. The total length of the screw is 90 mm, while the thread length is 46 mm. The screw has a metric thread with a pitch of 2.50 mm, which is standard for this diameter. Width c is 6.3 mm, width e is 20 mm and width a is 3.2 mm, which are important dimensions for the correct fit and functionality of the screw in the structure.

The screw material is steel, which provides sufficient strength and resistance to mechanical stress. 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 demanding applications where high joint strength is required. The screw is supplied without surface treatment, which means that it is suitable for applications where increased corrosion protection or aesthetic requirements for the surface are not required.

This screw is ideal for use in mechanical engineering, construction and other industries where it is necessary to ensure a strong and reliable connection of steel components.