Hexagonal screw with collar DIN 6921 M8x40-10.9 galvanized

Product detailed description

The hexagonal bolt with collar according to DIN 6921, with dimensions M8x40, is made of steel of strength class 10.9. This bolt is characterized by its hexagonal head with an integrated collar, which increases the contact area and improves the distribution of pressure during tightening. The collar has a smooth surface, which contributes to better contact with the material and reduces the risk of damage to the surface of the joined parts.

The strength class 10.9 indicates high material strength, which allows the bolt to be used in demanding applications where high mechanical properties are required. The bolt is galvanized with white zinc, which provides protection against corrosion and extends the life of the component in environments with higher humidity or chemical aggression.

The bolt has a metric thread with a diameter of M8 and a pitch of 1.25 mm. The total length of the bolt is 40 mm, while the thread length is 22 mm. The width between the faces of the hexagonal head is 13 mm and the height of the head including the collar is 8.1 mm. The diameter of the collar is 18 mm, which increases the stability and strength of the connection.

This screw is suitable for use in various industries, including the automotive industry, mechanical engineering and construction, where it is necessary to ensure strong and reliable connections. The screw also meets the requirements of the EN 1665 standard, which ensures its compatibility with European standards for bolted connections.