First, pay attention to the width of the door frame. Under normal conditions, ball locks and handle locks cannot be installed on doors with a frame width less than 90mm. The ideal width of the door frame should be between 60mm and 100mm. For ball locks, a 60mm frame is standard. If the frame is wider than 100mm, you can use a larger cover plate. For a 70mm lock tongue, it’s recommended to choose a corresponding lock type that matches the size.
Second, surface treatment plays an important role in the quality of a lock. Common treatments include electroplating, painting, and powder coating. A high-quality lock should have a smooth and even finish, with no bubbles, rust, or signs of oxidation. Additionally, the lock body should not have sharp edges that could potentially hurt users.
Third, the material used in the lock is crucial for its durability and performance. Locks are typically made from stainless steel, copper, or zinc alloy. High-grade stainless steel is known for its corrosion resistance and long-lasting appearance, making it the best choice. Copper offers excellent mechanical properties and versatility, though it tends to be more expensive. High-quality zinc alloy is durable, wear-resistant, and easy to shape, making it suitable for mid-range locks.
Tips: How to identify pure copper locks. First, look at the color—pure copper locks are usually polished and frosted, with a natural, darker hue compared to copper-plated ones. Second, feel the weight—pure copper feels heavier than other materials. Lastly, listen to the sound when opening the lock; copper locks tend to make a duller sound, while stainless steel locks produce a crisp and clear noise.
Fourth, the feel of the lock is determined by the
Spring inside. A good spring ensures smooth operation and a longer lifespan. When testing a lock, check the tension of the spring—it should feel soft but not too weak or too stiff.
Fifth, ensure the product meets recognized standards. Many foreign countries have strict regulations for hardware products. In China, the Ministry of Light Industry has updated some standards to align with international levels. Always check the implementation standards before purchasing to ensure quality and safety.
Sixth, consider the style of the lock. There are many different styles available, so it's important to choose one that complements your interior design. Whether modern, traditional, or minimalist, the lock should match the overall aesthetic of the door and room.
Seventh, always prioritize well-known brands. Reputable brands generally offer better quality assurance and customer service. Don’t compromise on security by choosing cheaper, unverified options. Investing in a reliable brand can provide peace of mind and long-term value.
By following these steps, you can make an informed decision when selecting a door lock, ensuring both functionality and safety for your home.
Tapping Screw
Although there are many types of tapping screws, they all have the following similarities:
(1) are generally made of carbonized carbon steel (accounting for 99% of total production). It can also be made of stainless steel or non-ferrous metals.
(2) The product must be heat treated. Carbon steel tapping screws must be carbonized and stainless steel tapping screws must be solution hardened. In order to make tapping screws to meet the requirements of the standard of mechanical properties and performance.
(3) The product surface hardness is high, the core toughness is good. That is, "soft inside strong outside". This is a major feature of tapping Screw performance requirements. If the surface hardness is low, it can not be screwed into the matrix; If the core toughness is poor, a twist will break, can not be used. So "inside soft outside steel" is self-tapping screw to meet the use of performance, very important requirements.
(4) The surface of the product needs surface protection treatment, generally electroplating treatment. Some product surface must be treated by phosphate (photostatting), such as wall panel self - tapping screws for photostatting.
(5) Production by cold heading process. It is recommended to use high-speed cold heading machine and high-speed wire rolling machine or high-speed planetary wire rolling machine. High speed is emphasized here to ensure product quality. Only the head of tapping screw produced by high-speed machine is well formed and the thread quality is high.
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Shenzhen Lanejoy Technology Co.,LTD , https://www.szlanejoy.com
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