How to choose a door lock?

The so-called good horse with a good saddle, a good door is far from enough, and a good lock should be matched to have a good protective effect on the family. Therefore, I believe everyone is very clear about the importance of door locks. The door lock is an important device for home anti-theft. It is the heart position of every door. A good door lock can make you feel at ease at home and when you go out. However, there are more and more door lock products in the building materials market, and some even claim that their homes are the safest door locks. Then, in the daily purchase, how should we choose the right one? What brand of door lock is more reliable? Today, I will talk to your friends about the purchase of door locks!

Here is the content list:

• Look at the material

• See surface treatment process

• Look at the surface treatment process

• Look at the implementation standards

• Look at the feel

• Try it

• Look at the bolt

• Look at the metal unlocking piece

• Door lock direction

Look at the material

At present, the lock materials on the market are divided into three types: stainless steel, copper, and zinc alloy. It is the best material lock; more versatile copper, having superior mechanical properties and higher prices; quality extremely resistant zinc alloy, corrosion resistance, formability, and is versatile in the mid-range lock. When we buy door locks, we are often worried that the locks are not durable or that the surface will rust or oxidize before long. From the point of view of durability of the lock, the lock is preferably a material that should be stainless steel, especially surfaces, with the brighter. Strength, corrosion resistance, color change. However, ferritic stainless steel and can be divided into austenite. Ferritic stainless steel having magnetism, commonly known as stainless iron. If the environment is not good, it will rust. Only austenitic stainless steel will not rust. The identification method is very simple. You can use a magnet to recognize it.

See surface treatment process

Surface treatment is roughly classified into electroplating, painting, and coloring three. Forming a dense protective film on the surface of the product by surface treatment, which plays the role of anti-corrosion and anti-rust, making the product more beautiful and durable. At the same time, it is also a measure of product quality. Door locks of good quality are mostly electroplated.

Look at the implementation standards

Foreign countries have very strict standards for hardware locks, so the quality of imported products is relatively high. At present, the Ministry of Light Industry has used some foreign standards to revise the originally implemented GB 21556-2008 into a more demanding one: GB/T 36920-2018, and officially implemented it on July 1, 2019. Manufacturers of big brands are already implementing: the new GB/T36920-2018 standard and small manufacturers are still implementing the original GB 21556-2008 standard. When purchasing door locks, be sure to clarify the implementation standard of the product.

Look at the feel

You can feel the quality of the door lock. Generally speaking, the heavier the lock is, the heavier the lock core is, the thicker the material, the wear-resistant, and the higher the quality. On the contrary, the material is thin and easy to damage; the locked body should not be exposed to the tip, which can easily hurt people. Pay special attention to the three positions of the end of the lock handle, the bolt, and the four corners of the lock body; The service life is also longer.

Try it

Open repeatedly to see the sensitivity of the lock cylinder spring. And the comfort of the handle when you open the door lock and whether it conforms to the ergonomic design, etc.

Look at the bolt

Each lock tongue has its advantages and disadvantages. It is recommended that you buy locks that are produced according to national standards. The larger the bolt, the better the anti-theft performance, and the larger the opening, which will not only increase the difficulty of construction but also cause greater damage to the door. In addition, the service life of the two-way retracted lock tongue is shorter than that of the one-way retracted lock tongue, but the safety is relatively high. You can choose according to your actual needs. The lock tongue mainly depends on the manufacturer's workmanship. If there is no obvious gap between the lock tongue and the lock tongue opening, the workmanship is better; if the lock tongue and the lock tongue opening are large, even if there is obvious loosening, it indicates that the manufacturer's door lock does not work well. Careful, its quality is more worrying.

Look at the metal unlocking piece

In addition, please note that there is an inconspicuous metal unlocking plate in the new lock you bought, so don't underestimate it. If the key is lost or the lock is malfunctioning, the lock can be easily removed and replaced with the unlocking piece. You can remove the keyless end of the unlocking piece, take off the handle, and then pull out the other end with the key, and install a new door lock without damaging other parts.

Door lock direction

When choosing a door lock, you must pay attention to the direction of the door inside your home. In the direction, you must figure out the left and right. Don't make a mistake, or you will have to go wrong to change the lock.

If you have any questions, you can consult the professionals of Guangdong Hehe Construction Hardware Products Co., Ltd. If you are interested in our company's sliding door locks, you can log in to our company website: https://www.3hhardware.com/, and look forward to your visit.