Combination screws, many purchasers may not know what is called a combination screw, what kind of screw. Here is a brief introduction to what is called a combination screw. Simply put, the combination screw has two combinations and three combinations. The head has a round head, which is the head of the pan and the head of the outer hexagon. The combination screw is a three-piece assembly consisting of a pan head screw or a hexagonal bolt with a flat washer.

The function of the combination screw is also very simple, that is, the connection of the product object is fastened. Because it is a flat pad and a good tooth on the screw, it does not need to be equipped with a flat pad. Moreover, in use, the combination screw has a particularly large effect, that is, the anti-loose effect.

The advantage of the combination screw is that it saves the time for manually arranging the flat pad and improves the efficiency of screwing a lot of screws used by some electronic appliances and other manufacturers. There are some manufacturers that use a lot of screws. When you screw them, some products need to be used with flat washers. It is necessary to play flat pads one by one. This is time consuming, laborious, and costly.