Countersunk Allen screw DIN 7991 M4x35-10.9 galvanized

Product detailed description

The countersunk screw with internal hexagon according to DIN 7991, ISO 10642 and ČSN 021144, with dimensions M4x35 mm, is intended for applications where it is necessary to achieve recessed joints with precise fit and high preload. This screw is made of steel of strength class 10.9, which guarantees high strength and resistance to mechanical stress. The zinc coating provides protection against corrosion, thereby extending the service life of the component in demanding conditions.

The screw head is countersunk with an angle of 90°, which allows it to be aligned with the surface of the material into which the screw is installed. The internal hexagon with a diameter of 3 mm allows the use of a standard Allen key for assembly and disassembly. The head height is 2.48 mm, which ensures sufficient strength and stability of the joint. The total length of the screw is 35 mm, while the thread length is 14 mm, which allows for a firm hold in materials of varying thickness.

The thread diameter is M4 with a metric pitch of 0.70 mm, which is standard for this type of screw. The diameter of the countersunk head is 8 mm and the head height is 1.8 mm, which ensures optimal pressure distribution on the surface of the material. The screw is suitable for use in various industrial sectors where high joint strength and corrosion resistance are required.