Don't overlook hardware door locks, pay attention to core replacement

In home decoration, door locks are the most inconspicuous but crucial hardware components. However, few people know that seemingly indestructible door locks also have a shelf life. When purchasing door locks, it is essential to choose products from well-known brands with excellent quality. Additionally, it is recommended to replace the locks every three to four years.

Currently, the market offers door lock cores classified as Grade A, Grade B, Super B, Grade C, and several others. Consumers can identify the quality of the lock core based on the number of pin tumblers.

In general, multi-row pin tumbler locks are superior to single-row pin tumbler locks, and multi-row hidden pin tumbler locks are superior to ordinary multi-row pin tumbler locks. The cost of Grade B lock cores is much higher than that of Grade A lock cores. Therefore, most of the lock brands in the market offer Grade A lock products. If the anti-theft door key has only one row of pin tumblers, it is essentially a Grade A or Grade B lock core.

For those who feel that their security is insufficient, they can consider upgrading to Super B or Grade C lock cores to enhance the overall anti-theft performance of the door.

Furthermore, high-quality locks generally produce a clear and crisp sound when opened, while low-end locks may feel loose when the key is inserted, and the opening sound is often muffled.