Countersunk Allen screw DIN 7991 M5x55 stainless steel A2

Product detailed description

The DIN 7991 Allen screw with dimensions M5x55 is made of A2 grade stainless steel, which guarantees high corrosion resistance and suitability for use in harsh environments. This screw is designed for applications where a flat surface of the joint is required, which is achieved thanks to the 90° countersunk head.

The screw head has an internal hexagon (hexagon), which allows for efficient torque transmission during assembly and disassembly. The thread diameter is M5 with a metric pitch of 0.80 mm, which is standard for this type of screw. The total length of the screw is 55 mm, while the head height is 2.3 mm and the width of the internal hexagon is 3 mm. The head diameter (dk) is 10 mm, which ensures sufficient contact surface for a solid connection.

The screw meets the standards DIN 7991, ISO 10642 and ČSN 021144, which guarantees its compatibility and usability in international applications. Thanks to its design, it is ideal for metal and structural applications where it is necessary to ensure a strong and reliable connection without protruding parts. The screw is supplied without surface treatment, which is typical for stainless materials that naturally resist corrosion.