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  • A & S System Co., Ltd.

    We are expanding our business with a unique anti-corrosion protective cap.
    Main Image
    Our company plans, develops, manufactures, and sells anti-corrosion and anti-rusting products as well as building fasteners. We are extending our business on the basis of our original product the Zinchat anti-corrosion protective cap. Lead used to be the main raw material for such products. However, since the RoHS directive limited its use, we continuously researched an alternative for five years, and we succeeded in developing our original alloy. We devised and commercialized the Zinchat anti-corrosion protective cap by using this alloy and applying the excellent protective functions of high-purity zinc. We are also focused on our AS PLUG BOLT post-installed concrete anchor, which is an in-house product.

    Product and technology information

    • Zinchat anti-corrosion protective cap

      Zinchat anti-corrosion protective cap

      [Product description] Our Zinchat is a full anti-corrosion protective cap devised by applying the excellent protection functions of high-quality zinc. Nuts and bolts are always subject to weathering at bridges, elevated railways, expressway sound-insulating walls, solar panels, play equipment at amusement parks, and structures in a salty environment. Condensation or acid rain cause rusting and corrosion because they are exposed. Corroded joints lose strength and may allow external force, such as an earthquake or typhoon, to collapse the structure. People are now concerned about the safety of public buildings and various other structures. We conducted R&D for our original alloy to solve these issues. We finally realized Zinchat by means of repeated improvements. Zinchat is very easy to use. All you need to do is put it on a nut and bolt and fasten it with a wrench. The ionic power produces electric anti-corrosion, sheathing anti-corrosion, and inhibitor effects, and prevents the nut and bolt from rusting. Zinchat protects parts from corrosion. Its excellent anti-corrosion functions last for a long time. [Market share/Ranking] AS PLUG BOLT: 70% Zinchat (anti-corrosion protective caps): 100%. [Intellectual property] Patent granted in February 2104. Trademark registered in November 2012.

    Company Profile

    Corporate name

    A & S System Co., Ltd.

    Web address


    10,000,000 (JPY)

    Number of Employees


    Established date


    Head office: Country


    Head office: Address

    3138, Anamushi, Kashiba, Nara, 639-0252


    Manufacture of fabricated metal products


    Isamu Arai   Representative Director

    Main phone number


    Representative FAX number


    Others (Comments)

    [Company strength]
    We developed Zinchat by means of continuous R&D for our original alloy. We have strong product development power and technical power. The EU enacted the RoHS directive (restriction on the use of certain hazardous substances in electrical and electronic equipment) regarding the use of metal materials in 2006. This directive limited the use of lead, which had been the main raw material for conventional products, so we continuously researched an alternative material. We successfully developed our original alloy after 5 years of research. We further improved and applied this original alloy and developed our Zinchat product. This is the epitome of the technologies and experience that we have cultivated so far.
    [Business description]
    Our company plans, develops, manufactures, and sells anti-corrosion and anti-rusting products as well as building fasteners. We are now focused on manufacturing and selling Zinchat anti-corrosion protective caps and AS PLUG BOLT post-installed concrete anchors. These are our original brand products. Our corporate concept is that our company will continue to evolve anti-corrosion technologies and propose unique products so as to be an imagination-oriented proposal-type company. Under the theme of "Safety revolution by ionic power," we will contribute to the safety and security of various industries throughout the world.
    Manufacturing and sales
    [Strength of products/technologies]
    Zinchat is a full anti-corrosion type protective cap devised by applying the excellent protective functions of high-quality zinc. Condensation or acid rain causes rusting and corrosion at anchor bolts and nut-bolt joints, and conventional anti-rusting methods are not satisfactory enough. Zinchat is attached to a joint for electric anti-corrosion (sacrificial anti-corrosion), sheathing anti-corrosion, and inhibitor effects that more effectively block the rusting of nuts and bolts. These excellent anti-corrosion functions are long-lasting, and its earthquake-resistance performance is also retained.
    [Representative's message]
    We will disseminate our unique anti-corrosion technology to meet needs in each field and continue to seek potential applications of Zinchat. We will continue product development to cover a wide range of fields from expressway sound-insulating walls, bridges, and solar panels to tunnels. We will also support fields that are closer to us, such as agricultural machines and implements, and water heaters.  We are also thinking of advancing into Europe and other overseas markets leading in rust research by adding further originality to anti-corrosion zinc. We will contribute to making a safe and comfortable society in Japan and abroad with the technologies and experience we have accumulated so far.
    [Company structure for market development/overseas expansion]
    Our company has a production system ready for quick deliveries to major corporate customers at any time. We now have our own production factory, and also the factories of three cooperative casting companies, four cooperative machining companies, and two cooperative coating factories in Japan. We are also considering an overseas production system for future mass production.
    [Market share/Ranking]
    AS PLUG BOLT: 70%.
    Zinchat (anti-corrosion protective cap): 100%.
    [Awards and media coverage]
    Tokyo Business Summit 2014, Special Award in Business Category.
    Nara Bizicon 2015, Best Award and Governor's Award.
    Metal News (May 13, 2013, November 10, 2014); Fuji Sankei Business i (September 16, 2013, March 11, 2015); Nikkan Kogyo Shimbun (March 12, 2015); Monthly Business Summit (December issue); Nara Shimbun (February 22, 2015).
    [Main Clients / Business History (domestic)]
    We sell our products nationwide with Sanko Techno Co., Ltd., Kobayashi Metals Limited, and Kondotec Inc. as our agencies for major companies. We provide a new version of Zinchat for use on roads managed by NEXCO East Japan. Zinchat is also used for the installation of solar panels and to make schools and other facilities resistant against earthquakes. It is also sold to home improvement centers.
    [Main Clients / Business History (overseas)]

    This company is recommended by a support organization

    Kansai Head Office

    Company profile in Japanese

    Company profile in Japanese

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