The specification of stainless steel zipper refers to the width of the zipper teeth, usually expressed in centimeters or inches. The wider the zipper teeth, the greater the strength. The larger the gauge of the zipper, the thicker the zipper and the thicker the fabric to be sewn. The measurement of the zipper specification is very simple. Lay the closed zipper horizontally and measure the width of the closed element with a ruler.
According to different lengths, it is divided into 3#, 4#, 5#, 7# and other different models. For example, the width of the elements of a 3# stainless steel zipper is about 3.1-3.5 cm. The wider the zipper teeth, the larger the size. As shown in the figure, from left to right are 3.5#, 4#, 5#, 8#, 10# metal zippers.
In most cases, the specifications of the zipper can be known from the numbers on the back of the slider on the stainless steel zipper, but there are also cases where the slider is not marked or marked with other meanings, and the specifications of the zipper are simply measured by the above method.