Countersunk Allen screw DIN 7991 M20x160-10.9

Product detailed description

The countersunk hexagon socket head cap screw according to DIN 7991, size M20x160, strength class 10.9, is designed for applications requiring a precise fit and high preload. This screw is made of steel, without surface treatment, which allows it to be used in environments where additional corrosion protection is not required.

The main design features include a countersunk hexagon head, which allows the screw to be recessed into the material so that its surface is flush with the surface of the material being joined. This design is ideal for applications where surface protrusions need to be minimized, such as mechanical assemblies with moving parts.

The screw has a metric thread with a diameter of M20 and a pitch of 2.50 mm. The total length of the screw is 160 mm, while the thread length is 52 mm, which provides sufficient space to create a solid connection. The screw head diameter is 36 mm, the head height is 5.9 mm and the width of the internal hexagon is 12 mm. The angle of the countersunk head is 90°, which is a standard angle for this type of screw, allowing for effective distribution of forces during tightening.

The strength class 10.9 indicates that the screw has high tensile strength and is suitable for demanding mechanical applications where it is necessary to ensure high reliability and durability of the connection. The screw also meets the standards ISO 10642 and ČSN 021144, which guarantees its compatibility and usability in international projects.