Self-tapping screw for steel DIN 938 M20x80-8.8

Product detailed description

The steel stud bolt according to DIN 938, with dimensions M20x80, is a structural element designed for fixed connections in steel, especially in blind holes. This bolt is made of steel with a strength class of 8.8, which means that it has a yield strength of 640 MPa and a tensile strength of 800 MPa. Such a strength class is suitable for applications where high mechanical properties and resistance to stress are required.

The stud bolt has a metric thread with a diameter of M20 and a pitch of 2.50 mm. The total length of the bolt is 80 mm, while the thread length is 46 mm. This type of bolt has a thread on both ends, with one end intended for screwing into the material and the other end, with a chamfer, is prepared for the nut. The width c is 6.3 mm, the width e is 20 mm and the width a is 3.2 mm, which provides precise dimensions for assembly applications.

The screw has no surface treatment, which means that it is without corrosion protection and is suitable for use in environments where it is not exposed to aggressive influences. The ČSN 021174 standard is equivalent to DIN 938, which ensures compatibility and standardization within European markets. This type of screw is ideal for applications where high strength and reliability of the connection are required.