Countersunk screw with groove DIN 963 M4x90 galvanized

Product detailed description

The DIN 963 slotted countersunk screw, with dimensions M4 x 90 mm, is made of steel of strength class 4.8. The screw is electroplated, which provides protection against corrosion and increases its resistance in various environments. The zinc finish is white, which is a standard finish to improve the aesthetic appearance and protect the material.

The screw head is countersunk, which means that after installation it is flush with the surface of the material, thus achieving a smooth surface without protruding parts. The groove on the head is continuous, which allows the use of a standard flat screwdriver for assembly and disassembly. The screw has a metric thread with a diameter of M4 and a pitch of 0.70 mm, with the thread extending to the head, which allows it to be used in applications where full use of the thread length is required.

The total length of the screw is 90 mm, with a head diameter (dk) of 7.5 mm and a head height (k) of 2.2 mm. The groove width (s) is 1 mm, which is compatible with common assembly tools. The screw is suitable for use in aesthetic and flush joints, both in metal and plastic parts. It is ideal for applications where the accuracy and aesthetics of the joint are important. The screw complies with ISO 2009 and ČSN 021151 standards, which guarantees its compatibility and quality according to international standards.