Classification of Zipper:

Zipper can be classified in many ways. Some of these are as follows:

Zipper Types (Depending on Teeth Material):

PZ:
Plastic zipper/Plastic molded zipper (Also known as Delrin from Dupont’s polyacetal resin brand). Polyacetal resin is molded into making the plastic teeth.

CZ:
Coil zipper/Polyester zipper Polyester monofilament is used to make the teeth. Previously it was known as Nylon zipper as nylon monofilament was used then. The name is still in use.

MZ:
Metal zipper. Name depends on metal used for teeth making.

IZC:
Invisible Polyester zipper.

GB:
Golden Brass zipper. Brass is used to make the teeth.

GK:
Antique Brass zipper. Golden Brass zipper is antique plated. Different types plating can be done on it.

PB:
Pre-formed Brass zipper. This is special type of zipper where instead of flat brass wire, pre-formed brass wire is used for teeth making.

AL:
Aluminum zipper. Aluminum is used to make the teeth.

NI:
Nickel zipper. Nickel is used to make the teeth.

Some of pictures of above classified Zippers are as follows-

Zipper Types (Depending on Teeth Size):

Zipper comes in quite a few different teeth sizes. The sizes are given a whole number nearer to its width. Each teeth size has a definite dimension.

Example: #3, #4, #4.5, #5, #6, #7, #8, # 10 and onwards. (#3 is smaller and #10 being bigger)

Zipper Types (as Per Function):

Zipper has few different types as per its function.

O (O/E): OPEN-END

C (C/E) : CLOSE-END

M (2WAY): TWO-WAY OPEN-END

2-WAY CLOSE-END Zipper is also available.

Lets see below picture to make it more clear-