Self-tapping screw for steel DIN 938 M8x20 stainless steel A2

Product detailed description

The DIN 938 steel stud bolt is designed for fixed connections in steel and is ideal for blind hole applications. This particular model has a metric thread with a diameter of M8 and an overall length of 20 mm. The stud bolt is made of A2 grade stainless steel, which provides high corrosion resistance and is suitable for use in environments with higher humidity or chemical exposure.

The design of the bolt includes a thread on both ends. The longer thread, with a length of 16 mm, is designed for screwing into the base material, while the shorter end is equipped with a chamfer for fastening the nut. This design allows for a strong and reliable connection, with the chamfer ensuring the nut is properly seated and the pressure is evenly distributed.

The thread has a pitch of 1.25 mm, which is standard for metric threads of this size, and ensures sufficient strength and reliability of the connection. Width c is 3.2 mm, width e is 8 mm and width a is 1.6 mm, which are critical dimensions for the correct fit and functionality of the screw in the structure.

This screw is without surface treatment, which is typical for stainless steel materials, as their natural resistance to corrosion eliminates the need for additional protective layers. The ČSN 021174 standard is equivalent to DIN 938, which guarantees compatibility and interchangeability within European standards. The screw is intended for professional use in mechanical engineering, construction and other technical areas where high strength and reliability of joints are required.