One, how much does a Class B-level lock cost?
The price of high-grade anti-theft door locks depends on various factors, with some costing several hundred yuan and others only a few tens of yuan. Generally, a good-quality high-grade anti-theft lock costs around 200 yuan. Currently, there are many counterfeit products of this type of lock, so it is best to choose branded products when purchasing.
II. How to select a high-grade lock cylinder
1、Traditionally, the quality of a lock is assessed by examining the teeth of the key. However, modern assessment focuses on the internal structure of the lock, such as the leaf-and-pin mechanism, which is generally superior to the traditional ball-bearing mechanism.
2、The pick locks should be selected based on their weight; the heavier the lock, the better the quality of the lock core, and the more internal beads it contains, resulting in improved anti-theft performance.
3. Assess the color and finish. When selecting a lock, pay more attention to the quality of the workmanship than the color. High-quality locks typically undergo electroplating, resulting in a smooth and bright surface. Also, examine the color of the copper core. Dark yellow copper cores are generally stronger and offer better security. Dull-colored locks generally have lower security. If the lock is gray and has bubbles, it is likely made of zinc alloy, which has poor quality.
4. Insert the key and try turning it. To do this, insert the key partially and then turn it clockwise or counterclockwise with a force of 5 to 7 units, while continuing to press the key into the lock. If the key is stuck, it indicates that the lock mechanism is of poor quality. If the key can be inserted smoothly, it indicates that the lock provides good security.