What are the common zipper specifications? The size and model of the zipper, as well as the base of the zipper head, will come with specifications, such as 3, 5, and 8, representing the zipper head for 3 # zipper, 5 # zipper, and 8 # zipper. The zipper head size parameters include mouth height and mouth width, which respectively represent the width and height of the zipper head.

What are common zipper heads?

1、 Invisible zipper nylon, fabric edge, lace 2 # -5 #;

2、 Elephant nose nylon, plastic steel, metal 2 # -10#

3、 Automatic head nylon, plastic steel, metal 2 # -10 # (with two or four points for each type)

4、 The locomotive has an elephant trunk locomotive and an automatic locomotive (5 # 8 # 10 #)

5、 European style nylon, plastic steel, metal (3 # -10 #)

6、 YG Head 3 #, 5#

7、 Needle 3 #, 45 #, 5#

8、 Metal zippers: # 2, # 3, # 4, # 5, # 7, # 8, # 10

9、 Rubber tooth zipper: # 3, # 5, # 6, # 7, # 8, # 10

10、 Nylon zipper: # 3, # 4, # 5, # 8, # 10

How to divide the zipper head models into specific sizes

Metal zipper 

Model 2 3 4 5 6 8 9

Specification (b1) mm 2.5~3.85 3.9~4.8 4.9~5.4 5.5~6.2 6.3~7.0 7.2~8.0 8.7~9.2

Note: Specification b1 refers to the selection range of width after tooth chain engagement.

nylon zipper 

Model 2 3 4 5 6 8 9 10

Specification (b1) mm 3.5~3.85 3.9~4.5 4.9~5.4 5.5~6.2 6.3~7.0 7.2~8.0 8.7~9.2 10.0~10.6

Note: Specification b1 refers to the selection range of width after tooth chain engagement

Derlin zipper 

Model 3 4 5 6 8 # 9

Specification (b1) mm 3.9~4.8 4.9~5.4 5.5~6.2 6.3~7.0 7.2~8.0 8.7~9.2

Note: Specification b1 refers to the selection range of width after tooth chain engagement.

The standard has added some specifications and models of zippers, and made appropriate adjustments to the range of specifications, including adding:

----------The specifications of metal zippers include: 6 # (6.3-7.0mm); 8 # (7.2-8.0mm)

----------The specifications of injection molded zippers include: 5 # (5.5-6.2mm); 6 # (6.3-7.0mm)

----------The specifications of PVC zipper head include: 4 # (4.9-5.4mm); 6 # (6.3-7.0mm) 9 # (8.7-9.2mm)

The price is now more expensive for metal, while nylon and injection molded ones are cheaper. Generally, the larger the size, the more expensive it is. There are also some special ones, such as the second size being more expensive than the third or fifth size, and the seventh size being more expensive than the eighth size