Screw cylindrical head - hex DIN 912 M3x50-12.9

Product detailed description

The cylinder head screw with internal hexagon according to DIN 912, ISO 4762 and ČSN 021143 is designed for fixed screw connections with high preload. This type of screw is suitable for applications where high connection strength is required and where assembly accuracy is required. The screw has a diameter of M3 and a length of 50 mm, which makes it an ideal choice for delicate mechanical applications and assemblies where space is limited.

The screw material is steel of strength class 12.9, which means that the screw has a very high tensile strength and is able to withstand high mechanical loads. Strength class 12.9 indicates a minimum tensile strength of 1200 MPa and a minimum yield strength of 1080 MPa, which guarantees reliability and durability in demanding conditions. The screw has no surface treatment, it is blackened, which provides basic corrosion protection and improves its appearance.

The head shape is cylindrical with an internal hexagon, which allows for easy assembly and disassembly using an Allen key. This design reduces the risk of head damage during assembly and allows for the application of higher torque compared to traditional screws with an external hexagon. Screws with an internal hexagon are often used in mechanical engineering, the automotive industry and in the manufacture of equipment, where high precision and reliability of joints are required.

The screw is suitable for use in applications where high strength and resistance to dynamic loads are required. It is ideal for assembly work where it is necessary to achieve high preload and where aesthetics and compactness of the joint are important. The screw meets all the requirements of DIN 912, ISO 4762 and ČSN 021143 standards, which guarantees its compatibility and quality.