18 mm laser "ONLY edge" rotational h button with ladder nail

Core Product Type Features:

 Jeans Button (also known as SHANK BUTTON), used for jeans, in recent years, as well as for casual wear. 
1)From the style point of view, the shank button is divided into the following categories:
Plastic insert Jeans button - screw / nail arrow
 Single-needle Jeans Button – Double short nails
 Rotate Jeans Button - long double cut nails
 Double Needle Jeans Button - Copper needle nail

 2) The button from the material can be divided into:
brass Jeans Button ,Alloy Jeans Button ,Plastic Jeans Button 
  

Electroplating :

commonly used in electroplating color: NICKEL FREE NICKEL ; ANTI COPPER, GOLD;ANTI BRASS;COPPER;LIGHT PEWTER;JAPAN ANTI BRASS,CONTRASTED TIN,etc.

Button size calculation method

Button size lignes (L) or millimeter (MM) for diameter
1Lignes = 0.625 MM 1MM = 1 / 25 INCH
Model calculation of the size of button size
We often say that the 14 #, 16 #, 18 #, 20 #, 60 #, etc.

The standard formula: diameter = 0.625 Model * (mm).

If there is a button in our hands , but do not know the size of its models, we can use Caliper Measure the diameter (mm) can be divided by 0.625.

To measure up to the scale, method Unit: L, No.

(LIGNES) 1L = 0.625mm 1mm = 1 / 25" , (INCH) 12L = 7.5MM = 5 / 16 ", 13L = 8MM = 5 / 16" , 14L = 9MM = 11/32 ", 15L = 9.5MM = 3 / 8", 16L = 10MM = 13/32 ", 17L = 10.5MM = 7 / 16", 18L = 11.5MM = 15/32 ", 20L = 12.5MM = 1 / 2 "

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