Tips for using countersunk hexagon socket bolts

Countersunk hexagon socket bolts are also called flat cup hexagon socket bolts. They are commonly available in imperial and metric sizes. Commonly used materials include stainless steel and carbon steel. The screw head is round on the outside and has a concave hexagon in the middle. Its head is a 90-degree cone. After assembly, the screw head can sink into the assembly surface to keep the assembly surface neat.

 

Countersunk hexagon socket bolts are often used on mechanical equipment, mainly for fastening, disassembly, and not easy to slip. Hexagon socket wrenches are usually 90 degrees bends, with one end long and one side short. When using the short side to screw, holding the long side can save a lot of effort and can play a very good fastening role. Countersunk hexagon socket bolts are mostly used when there are no concave places on the surface of the parts after assembly. The parts of the fasteners are divided into thin and thick types. To put it bluntly, thick means that the thickness of the fastened parts is higher than the thickness of the hexagon socket bolt head. After the screw is tightened, a small part of the thread does not enter the threaded hole. In this case, the hexagon socket bolt can be tightened.

There is another situation in general, that is, the thickness of the fastened parts is lower than the height of the head of the countersunk hexagon socket bolt. This is more common in sheet metal parts in mechanical equipment, such as the hinges of the chassis power supply and the connection between the door and the box shell.