What problems will be encountered during the use of long screws?

Sometimes, when we use the long screws, we will find that it appears some problems, not to achieve their desired effect. Now, the Shi Shi Tong screw manufacturer has sorted out some of the problems that may occur during use.

The screw will break. If the long screws will break, you need to see where the screw is broken, because the position of the break is not the same, the cause is different. For example, if the head is broken, it may be that the groove of the screw is too deep and does not remove hydrogen, etc. If the rod part is broken, it may be because the screws are welded and the strength is not up to the requirements. Another situation is the use of too much torque, beyond the capacity of the screw.

Two, screw thread can’t go in. If it is a machine, it usually needs the nut to cooperate to use. So we need to see if the screw can pass through the gauge and if the nut can pass through the gauge. If not, the thread dimensions are not produced as per standard. If 2 can pass, but still can’t screw in, then you need to see whether the thread pitch is the same, only the same pitch can screw in; Or see if the thread size of the long screw is made to the upper tolerance and the thread size of the nut is made to the lower tolerance.

The surface is easy to fall off. This is because the plating is not good enough, resulting in the coating and long screws adhesion is not strong, this will lead to the surface is easy to fall off. Also, because the screw material itself does not adhere as strongly to the coating, in this case either a different material or a different surface treatment.