If we only observe through the external structure, both D-shaped and bow shaped shackles belong to a symmetrical structure. However, if we pay attention to some details, we will find that the shackles are not symmetrical either, and their different treatments mainly occur in the screw hole part.

Not all of the two holes of the shackle have been threaded. There is only one threaded hole, which is the screw hole used for locking the cross bolt. This means that the installation of the cross bolt has a direction, and everyone needs to pay special attention to this. The correct way to cross is for the bolt to first pass through the non threaded hole and then enter the threaded hole, so as to seal the opening of the shackle. If installed in reverse, it will not have any sealing effect.

This is the detailed handling of the detachable buckle, and it is also the key to ensuring its normal use. If you have any other questions, you can call for consultation.