Plastic bottle mouth ( Diameter) Understanding and choice

one The threaded ( Diameter) Understanding and choice of the customers looking for plastic bottle, neglect to a heavy problem, that is the size of the bottle mouth. Threaded, as the name, the threaded is refers to the size of the bottle take part of the tooth, with sample pictures below will show: cosmetics industry market general the threaded most often are: 18 teeth, teeth 20, 24 tooth, 28 teeth, 32 teeth, wide mouth have 47 teeth, 53, 68 teeth, 89 teeth, a lot of time sourcing or customer in the factory when asked about how much the threaded, but don't know what is or measurement which position, actually manufacturer ask is this the size of the threaded part, can according to the above picture with a caliper measure is how much, for example: 18 teeth, you will find that is 17. About 5 mm, 23 of 24 teeth. 5 mm or so, why is not the integer, the problem is the problem on the product design, need corresponding with the caps in the second article we'll talk about on the relationship between 'the bottle and cap. But just remember that a little is enough, manufacturers call the threaded are is larger than the diameter of the actual measurement to 0. 3 - 0. About 5 mm. I will give you an example: for example the threaded specification is 28 teeth, then the bottle with tooth part of the actual measurement is 27. 5毫米。 The man is easy to understand. Next we have to meet a few, but also an important part, is the tooth and tooth type. Here in short solution first, the second 'bottle and cap the relationship of' we will detailed explanation once the tooth type, tooth is not correct, you don't deserve the cover also can appear sliding tooth (or assigned to the Take off the teeth) Or adverse situation such as leakage. We know each other here first tooth pitch and measurement method, as shown in figure: