Hexagon head screw according to DIN EN ISO 4017. The strength class of the screw is stamped on the screw head. Especially for connections that have to transfer vertical loads via friction, it is essential to pay attention to the screw tightening torque and to check it with the torque wrench! Dimensions (approx. dimensions) Thread: M 10 Screw length: 40 mm Strength class: 70 Screw tightening torque: 32 Nm Material: Stainless steel, material no. 1.4301, 1.4303