Must know the hardware common sense: the door lock also has a shelf life

In today's market, door lock cylinders are categorized into different levels such as A-grade, B-grade, and Super B-grade. According to experts, consumers can assess the quality of a lock cylinder by checking the number of pins inside. Generally, multi-pin locks offer better security than single-pin ones, while multi-row stealth pin locks are even more secure than regular multi-pin models. Experts explain that B-grade lock cores are significantly more expensive than A-grade ones. As a result, most products on the market come with A-grade locks. If your front door uses a single-row pin system, it’s likely an A-grade lock. If you feel it’s not secure enough, consider upgrading to a B or Super B-grade cylinder to enhance the overall security of your door. Material quality also plays a crucial role in determining the durability and reliability of a lock. Experts mention that common materials used for locks include aluminum alloy, stainless steel, and copper. Among these, aluminum alloy has the weakest strength and durability, while copper is the strongest but comes at a higher cost. Even among copper locks, there are significant differences in craftsmanship and quality between brands, making it difficult for average consumers to tell them apart. A salesperson shared that the best way for consumers to identify a "safe" lock is through comparison. High-end brand locks usually have finer details, with smooth seams, while cheaper models tend to look rougher. Additionally, when turning the key, a high-quality lock produces a crisp sound, whereas lower-quality ones may feel loose and make a dull noise. It's also important to note that door locks should be replaced every five years. According to a local locksmith, after several years of use, the internal components of a lock can wear down, making it easier for keys with similar tooth patterns to open the door. This means that even a standard lock should be replaced periodically to maintain its effectiveness. The editor warns that many communities have security doors and locks installed by real estate developers, often using low-quality options. In such cases, the same type of lock is used across multiple units, increasing the risk of unauthorized access. Some new residents report frequently finding themselves in the wrong homes due to this issue. Therefore, it's essential to replace old lock cylinders to prevent serious safety risks. If left unchanged for too long, a worn-out lock could potentially open multiple doors, leading to unnecessary problems. To ensure safety, it's vital to invest in high-quality lock components and avoid potential security breaches.

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