I encountered a very strange thing about the anti theft door lock, and I can t explain it clearly! H

No, you'll have to change the cylinder.

You can remove the lock cylinder as follows: first remove the doorknob, and then unscrew it on the side of the lock, and the lock cylinder can be removed. Then go to the hardware store and buy the same lock cylinder and install it in the same way. >>>More

It depends on which type of cylinder you use. There is this kind of lock cylinder. >>>More

A, B, C key lock, it has A, B, C three keys. The function of the A, B, and C keys is that when people install the lock, the owner can hand over the A key to the house decoration personnel for them to unlock the door in and out of the house, so the A key is also called the "decoration key"; The B key can also be used normally. When the decoration is completed, the owner does not need the decoration personnel to enter the room, the master inserts the C key into the lock hole and turns the lock cylinder (circle), the A key loses the function of unlocking, and the key can be used normally in the future. >>>More

It is recommended that you change to a super B-level lock cylinder, and now the cost-effective super B-level lock cylinders on the market are Ou Ou Lun, Mei Bao, Wolverine Tooth, Jiale quality and anti-theft performance. The prices of Manshen, Yuema, Jindian Atom, Baodean, etc. are slightly higher. It is recommended that you choose Golden Point Atom, Golden Point Atom is a big brand, and the brand model specifications are relatively complete. >>>More

First of all, the national standard for anti-theft lock cylinders is Class A and Class B, and Super B is a level set by the lock cylinder enterprise, which is also called back to do enterprise-level. Answer. >>>More