There is often a confusion between the zipper type and the zipper type. We have covered this article to enlighten this problem to my customers.

Zipper Type or Zipper Number or Zipper Size are expressed in international standards, zipper sizes are # (TYPE) and are determined by thread width. Millimeter / Inch is used to measure. Typically, the Type (size) of a zipper is an approximate value of the tread width in millimeters when closed. The measurement will not be properly aligned with the zipper size with a deviation ranging from minus 0.8 to 1.85.

Zipper type; spireal or coil zipper, plastic toothed zipper, metal toothed zipper meant, while Zipper model; It refers to the area and shape of the zipper. For example ; Such as hidden zipper, Open End zipper, Closed End zipper, Duplex zipper.

You can see our article about Zipper Type (size) and thread width measurement. Below are our specification tables showing the standard types (sizes) of different zipper types compared to tooth widths in millimeters.

 

Metal Zipper Type (Size)

2 #

3 #

4 #

5 #

6 #

8 #

9 #

10 #
Tooth Width (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

10 ~ 10.6

 

Coil Zipper Type (Size)

2 #

3 #

4 #

5 #

6 #

8 #

9 #

10 #

Tooth Width (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

10 ~ 10.6

 

Plastic Zipper Type (Size)

3 #

4 #

5 #

6 #

8 #

9 #

10 #

Tooth Width (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

10 ~ 10.6

 

Depending on the measuring system, the size of the thread width may vary depending on the unit used in each country. It is important to understand the relationship between different measurement units.

Relationship Between Inches and Millimeters

1 cm = 10 mm

1 inch = 2.54 cm

1 inch = 25.4mm

You can easily determine the Zipper Type (size) / tooth width for your products according to the feature charts listed above.

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