The head of a Square countersunk head bolt is square and has a bevel that can sink completely into the countersunk hole of the material to which it is joined. In this way, the bolt head will not protrude and the surface will be flatter. If you pursue beauty, you can choose them.
You can use square countersunk head bolt in the furniture manufacturing industry. They can be used to make tabletops, cabinet doors, etc. They can hide the screws. After being tightened, the surface is smooth and does not affect the overall appearance of the furniture. They also do not feel uncomfortable when touched.
The bolt wrench has a large contact area and is less likely to slip out when tightened, making it easier to operate than the round head bolt. Even those with little strength can tighten the bolts. A countersunk hole has to be drilled in the material before installation. After the square countersunk head bolt is screwed in, the head is completely inserted into the hole and flush with the surface of the material. In this way, whether it is installed on a plane or a curved surface, it will not affect the overall flatness.
The square countersunk head bolt is characterized by being space-free and concealed. After installation, the bolt head is flush with the material surface and will not bulge like ordinary bolts. It neither affects the appearance nor scratches other things. They are easy to install and do not slip easily during installation, making them highly practical.