
1.A-213 is a third-generation one-way adjustable plastic side-opening snap fastener specially developed for pet chest harnesses, collars, and pet clothing. The entire series is made through a single injection molding process of high-strength POM (polyoxymethylene) plastic. It is divided into three sub-models: A-213 frameless version, A-213 framed version, and A-213C non-adjustable version. The entire series supports one-way continuous adjustment of the webbing, and customizations such as color matching of the snap fasteners, laser or molded logos can be made as needed. It is suitable for the mass production of various large-sized pet outdoor products.

The buckle body material is made of high-strength engineering plastic POM, which not only has comparable load-bearing strength to metal parts but also offers the advantage of lightweight:
1. It has a self-lubricating structure, allowing the webbing to slide smoothly without getting stuck, and it is not prone to wear and discoloration even after repeated pulling;
2. It is resistant to sweat, rain, and outdoor mud and water corrosion, and will not rust, oxidize, or change color even when used outdoors for a long time;
3. It has excellent high and low temperature weather resistance, and will not crack or deform even in extremely cold winter or high-temperature vehicle environments;
4. The surface is dense and smooth. Even if it gets stained with mud and dirt, it can be cleaned with clean water, without sharp edges or burrs, and will not scratch the pet's fur or damage the fabric;
5. The material is highly resilient and has stable dimensions. It has a high production cost-effectiveness and is suitable for large-scale pet product orders.

1. Multi-force point reinforced structure
The A-213 frameless plain style has 8 additional force points compared to the traditional A161 buckle, resulting in a more uniform force distribution, significantly enhanced overall tensile strength, and reduced the risk of breakage during heavy pulling, ensuring the safety of the pet when running or being dragged; the frameless style has a thicker frame structure, further enhancing the side impact resistance.
2. Unidirectional continuous adjustment design
It belongs to a unidirectional sliding adjustment structure. Pulling the free end of the fabric strap can tighten and shorten the length, and lifting the side lever can release the locking, and stretching the fabric strap. There is no need to remove the fabric strap to quickly adjust the tightness, suitable for different-sized cats and dogs; A-213C is a basic plug-in without adjustment function, only used for opening and closing fixation.
3. Low-profile and rounded shape
The entire edges are fully rounded with no protruding corners, fitting snugly against the pet's back and neck. It is less likely to get caught on branches when running and moving through grass during outdoor activities, and reduces friction and scraping on the pet's skin.
4. Side-opening quick disassembly structure
Double-sided pressing to release design. It can be quickly disassembled and assembled with one hand. Wearing and removing the pet's chest and back strap is time-saving and labor-saving. The locking buckle bites tightly, and the pet will not accidentally detach during vigorous jumping or pulling.







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