The sternum strap adjuster is also known as the backpack buckle. The backpack buckle is an indispensable part of the backpack production process, but many people do not know much about the backpack buckle. Day buckles, ladder buckles, hook buckles, rope buckles, and some more special-purpose ones. Now let’s introduce the characteristics, uses and strengths of these fasteners.
 

1. Buckle
The material selected for the buckle is generally POM (polyoxymethylene, commonly known as Saigang), PP and NY. The buckle is composed of a male buckle and a female buckle. One end is fixed with a webbing, and the other end can be adjusted by the webbing, which can be selected according to different needs. The length of the webbing is generally used to fix the shoulders and waist.

2. Japanese word buckle

The material is generally POM, PP, NY. Generally speaking, the day buckle is used on the shoulder strap of the backpack and the shoulder strap of the shoulder bag to adjust the length of the webbing. In order to prevent slippage, many days buckle The middle bar is designed with stripes. There are also two horizontal bars next to them that are enlarged and placed with their own logos, which are mostly similar in shape.

3. Ladder buck
le

Its materials are generally PP, POM, NY, and the function of the ladder buckle is also to shrink the webbing, which is generally used at the tail of the shoulder strap to adjust the fit of the backpack.

4. Cord buckle

The rope buckle material is generally PP, NY, POM. Using the elasticity of the spring coil, the rope is dislocated and stuck. The diameter of the rope opening can be selected, single hole and double hole, suitable for various OO ropes, nylon ropes, elastic ropes.

5. Hook buck
le

Hook materials generally come from PP, NY, POM. The hook buckle is generally used on the side of the shoulder bag, with a d-ring connected on one side and a webbing connection on the other side.