Zippers made with metal teeth go back to 1893, when Judson Whitcomb patented the first Slide Fastener.
Great advancements have been made since that first interlocking device was developed. Today, LENZIP offers metal tooth zippers in 2 different gauges (weights), 2 different tape widths and 4 distinct finishes.
The #5 gauge is a medium weight zipper with standard 9/16" tape width or a wider 3/4" tape width. The #10 gauge is a heavy weight zipper available in 3/4" tape width.
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#5 Gauge 9/16" |
#5 Gauge 3/4" |
#10 Gauge 3/4" |
Shown below are the 4 different finishes that LENZIP offers for metal tooth zippers.

Black Oxidized Brass -- Zipper chain made from brass that is chemically treated to a Black Matte finish. |

Aluminum -- Zipper chain that is constructed principally of aluminum. |

Brass -- Zipper chain that is constructed from brass, with is a combination of copper and zinc. |

Antique Brass- -- Zipper chain made from brass that is chemically finished to give the appearance of worn or tarnished brass. |