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The world's largest zipper maker uses the initials of its founder's business. The figure is taken from Encyclopaedia Britannica, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.

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YKK on zippers stands for a Japanese manufacturing company

The world's largest zipper maker uses the initials of its founder's business

The letters YKK stamped on millions of clothing zippers worldwide stand for Yoshida Kogyo Kabushikikaisha. Founded in Tokyo in 1934 by Tadao Yoshida, the company grew into the world's largest zipper manufacturer. It produces billions of zips each year across dozens of global facilities.

Where this comes from

Encyclopaedia Britannica

Facts that can change over time are reviewed and updated. If something here looks wrong, Mondo would rather know than be confidently incorrect.

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Tags: clothing, zippers, manufacture

YKK on zippers stands for a Japanese manufacturing company: the short answers

Where does this come from, and can I check it?: The world's largest zipper maker uses the initials of its founder's business. The figure is taken from Encyclopaedia Britannica, which is linked in full on this page. Every fact on Mondo Knows names its source rather than repeating an unsourced claim.
Is this really a everyday life fact?: Yes. It sits on the Everyday Life shelf, one of 1,090 sourced facts grouped into space, animals, the human body, history, science and more. Category pages collect every fact in the same field.
What else can I read about it?: The links under the fact point to a quiz, game, puzzle or calculator on the same subject, and the shelf below shows related facts. The wording here is original, and quoted phrases are marked as quotations.